diff options
| author | Shuyi Chen <shuyichen@google.com> | 2013-05-22 14:51:55 -0700 |
|---|---|---|
| committer | Shuyi Chen <shuyichen@google.com> | 2013-05-22 17:19:30 -0700 |
| commit | d7955ce24d294fb2014c59d11fca184471056f44 (patch) | |
| tree | e260500b0b7639127038495d46a0ad6dcbb6d96c /src/org/jivesoftware/smackx/commands | |
| parent | 8f4ce9ea0de51fee918bffe19c434612d6bbb2d7 (diff) | |
| download | smack-6ba3bcec61d4e3e91fc74356adc13c92ae2da038.tar.gz | |
Add android smack source.HEADandroid-wear-5.0.0_r1android-sdk-4.4.2_r1.0.1android-sdk-4.4.2_r1android-l-preview_r2android-cts-5.1_r9android-cts-5.1_r8android-cts-5.1_r7android-cts-5.1_r6android-cts-5.1_r5android-cts-5.1_r4android-cts-5.1_r3android-cts-5.1_r28android-cts-5.1_r27android-cts-5.1_r26android-cts-5.1_r25android-cts-5.1_r24android-cts-5.1_r23android-cts-5.1_r22android-cts-5.1_r21android-cts-5.1_r20android-cts-5.1_r2android-cts-5.1_r19android-cts-5.1_r18android-cts-5.1_r17android-cts-5.1_r16android-cts-5.1_r15android-cts-5.1_r14android-cts-5.1_r13android-cts-5.1_r10android-cts-5.1_r1android-cts-5.0_r9android-cts-5.0_r8android-cts-5.0_r7android-cts-5.0_r6android-cts-5.0_r5android-cts-5.0_r4android-cts-5.0_r3android-cts-4.4_r4android-cts-4.4_r1android-5.1.1_r9android-5.1.1_r8android-5.1.1_r7android-5.1.1_r6android-5.1.1_r5android-5.1.1_r4android-5.1.1_r38android-5.1.1_r37android-5.1.1_r36android-5.1.1_r35android-5.1.1_r34android-5.1.1_r33android-5.1.1_r30android-5.1.1_r3android-5.1.1_r29android-5.1.1_r28android-5.1.1_r26android-5.1.1_r25android-5.1.1_r24android-5.1.1_r23android-5.1.1_r22android-5.1.1_r20android-5.1.1_r2android-5.1.1_r19android-5.1.1_r18android-5.1.1_r17android-5.1.1_r16android-5.1.1_r15android-5.1.1_r14android-5.1.1_r13android-5.1.1_r12android-5.1.1_r10android-5.1.1_r1android-5.1.0_r5android-5.1.0_r4android-5.1.0_r3android-5.1.0_r1android-5.0.2_r3android-5.0.2_r1android-5.0.1_r1android-5.0.0_r7android-5.0.0_r6android-5.0.0_r5.1android-5.0.0_r5android-5.0.0_r4android-5.0.0_r3android-5.0.0_r2android-5.0.0_r1android-4.4w_r1android-4.4_r1.2.0.1android-4.4_r1.2android-4.4_r1.1.0.1android-4.4_r1.1android-4.4_r1.0.1android-4.4_r1android-4.4_r0.9android-4.4_r0.8android-4.4_r0.7android-4.4.4_r2.0.1android-4.4.4_r2android-4.4.4_r1.0.1android-4.4.4_r1android-4.4.3_r1.1.0.1android-4.4.3_r1.1android-4.4.3_r1.0.1android-4.4.3_r1android-4.4.2_r2.0.1android-4.4.2_r2android-4.4.2_r1.0.1android-4.4.2_r1android-4.4.1_r1.0.1android-4.4.1_r1android-4.3_r3.1android-4.3_r3android-4.3_r2.3android-4.3_r2.2android-4.3_r2.1android-4.3_r2android-4.3_r1.1android-4.3_r1android-4.3_r0.9.1android-4.3_r0.9android-4.3.1_r1tools_r22.2mastermainlollipop-wear-releaselollipop-releaselollipop-mr1-wfc-releaselollipop-mr1-releaselollipop-mr1-fi-releaselollipop-mr1-devlollipop-mr1-cts-releaselollipop-devlollipop-cts-releasel-previewkitkat-wearkitkat-releasekitkat-mr2.2-releasekitkat-mr2.1-releasekitkat-mr2-releasekitkat-mr1.1-releasekitkat-mr1-releasekitkat-devkitkat-cts-releasekitkat-cts-devjb-mr2.0.0-releasejb-mr2.0-releasejb-mr2-releasejb-mr2-devidea133-weekly-releaseidea133
Change-Id: I49ce97136c17173c4ae3965c694af6e7bc49897d
Diffstat (limited to 'src/org/jivesoftware/smackx/commands')
6 files changed, 1702 insertions, 0 deletions
diff --git a/src/org/jivesoftware/smackx/commands/AdHocCommand.java b/src/org/jivesoftware/smackx/commands/AdHocCommand.java new file mode 100755 index 0000000..3077d08 --- /dev/null +++ b/src/org/jivesoftware/smackx/commands/AdHocCommand.java @@ -0,0 +1,450 @@ +/**
+ * $RCSfile$
+ * $Revision$
+ * $Date$
+ *
+ * Copyright 2005-2007 Jive Software.
+ *
+ * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.jivesoftware.smackx.commands;
+
+import org.jivesoftware.smack.XMPPException;
+import org.jivesoftware.smack.packet.XMPPError;
+import org.jivesoftware.smackx.Form;
+import org.jivesoftware.smackx.packet.AdHocCommandData;
+
+import java.util.List;
+
+/**
+ * An ad-hoc command is responsible for executing the provided service and
+ * storing the result of the execution. Each new request will create a new
+ * instance of the command, allowing information related to executions to be
+ * stored in it. For example suppose that a command that retrieves the list of
+ * users on a server is implemented. When the command is executed it gets that
+ * list and the result is stored as a form in the command instance, i.e. the
+ * <code>getForm</code> method retrieves a form with all the users.
+ * <p>
+ * Each command has a <tt>node</tt> that should be unique within a given JID.
+ * <p>
+ * Commands may have zero or more stages. Each stage is usually used for
+ * gathering information required for the command execution. Users are able to
+ * move forward or backward across the different stages. Commands may not be
+ * cancelled while they are being executed. However, users may request the
+ * "cancel" action when submitting a stage response indicating that the command
+ * execution should be aborted. Thus, releasing any collected information.
+ * Commands that require user interaction (i.e. have more than one stage) will
+ * have to provide the data forms the user must complete in each stage and the
+ * allowed actions the user might perform during each stage (e.g. go to the
+ * previous stage or go to the next stage).
+ * <p>
+ * All the actions may throw an XMPPException if there is a problem executing
+ * them. The <code>XMPPError</code> of that exception may have some specific
+ * information about the problem. The possible extensions are:
+ *
+ * <li><i>malformed-action</i>. Extension of a <i>bad-request</i> error.</li>
+ * <li><i>bad-action</i>. Extension of a <i>bad-request</i> error.</li>
+ * <li><i>bad-locale</i>. Extension of a <i>bad-request</i> error.</li>
+ * <li><i>bad-payload</i>. Extension of a <i>bad-request</i> error.</li>
+ * <li><i>bad-sessionid</i>. Extension of a <i>bad-request</i> error.</li>
+ * <li><i>session-expired</i>. Extension of a <i>not-allowed</i> error.</li>
+ * <p>
+ * See the <code>SpecificErrorCondition</code> class for detailed description
+ * of each one.
+ * <p>
+ * Use the <code>getSpecificErrorConditionFrom</code> to obtain the specific
+ * information from an <code>XMPPError</code>.
+ *
+ * @author Gabriel Guardincerri
+ *
+ */
+public abstract class AdHocCommand {
+ // TODO: Analyze the redesign of command by having an ExecutionResponse as a
+ // TODO: result to the execution of every action. That result should have all the
+ // TODO: information related to the execution, e.g. the form to fill. Maybe this
+ // TODO: design is more intuitive and simpler than the current one that has all in
+ // TODO: one class.
+
+ private AdHocCommandData data;
+
+ public AdHocCommand() {
+ super();
+ data = new AdHocCommandData();
+ }
+
+ /**
+ * Returns the specific condition of the <code>error</code> or <tt>null</tt> if the
+ * error doesn't have any.
+ *
+ * @param error the error the get the specific condition from.
+ * @return the specific condition of this error, or null if it doesn't have
+ * any.
+ */
+ public static SpecificErrorCondition getSpecificErrorCondition(XMPPError error) {
+ // This method is implemented to provide an easy way of getting a packet
+ // extension of the XMPPError.
+ for (SpecificErrorCondition condition : SpecificErrorCondition.values()) {
+ if (error.getExtension(condition.toString(),
+ AdHocCommandData.SpecificError.namespace) != null) {
+ return condition;
+ }
+ }
+ return null;
+ }
+
+ /**
+ * Set the the human readable name of the command, usually used for
+ * displaying in a UI.
+ *
+ * @param name the name.
+ */
+ public void setName(String name) {
+ data.setName(name);
+ }
+
+ /**
+ * Returns the human readable name of the command.
+ *
+ * @return the human readable name of the command
+ */
+ public String getName() {
+ return data.getName();
+ }
+
+ /**
+ * Sets the unique identifier of the command. This value must be unique for
+ * the <code>OwnerJID</code>.
+ *
+ * @param node the unique identifier of the command.
+ */
+ public void setNode(String node) {
+ data.setNode(node);
+ }
+
+ /**
+ * Returns the unique identifier of the command. It is unique for the
+ * <code>OwnerJID</code>.
+ *
+ * @return the unique identifier of the command.
+ */
+ public String getNode() {
+ return data.getNode();
+ }
+
+ /**
+ * Returns the full JID of the owner of this command. This JID is the "to" of a
+ * execution request.
+ *
+ * @return the owner JID.
+ */
+ public abstract String getOwnerJID();
+
+ /**
+ * Returns the notes that the command has at the current stage.
+ *
+ * @return a list of notes.
+ */
+ public List<AdHocCommandNote> getNotes() {
+ return data.getNotes();
+ }
+
+ /**
+ * Adds a note to the current stage. This should be used when setting a
+ * response to the execution of an action. All the notes added here are
+ * returned by the {@link #getNotes} method during the current stage.
+ * Once the stage changes all the notes are discarded.
+ *
+ * @param note the note.
+ */
+ protected void addNote(AdHocCommandNote note) {
+ data.addNote(note);
+ }
+
+ public String getRaw() {
+ return data.getChildElementXML();
+ }
+
+ /**
+ * Returns the form of the current stage. Usually it is the form that must
+ * be answered to execute the next action. If that is the case it should be
+ * used by the requester to fill all the information that the executor needs
+ * to continue to the next stage. It can also be the result of the
+ * execution.
+ *
+ * @return the form of the current stage to fill out or the result of the
+ * execution.
+ */
+ public Form getForm() {
+ if (data.getForm() == null) {
+ return null;
+ }
+ else {
+ return new Form(data.getForm());
+ }
+ }
+
+ /**
+ * Sets the form of the current stage. This should be used when setting a
+ * response. It could be a form to fill out the information needed to go to
+ * the next stage or the result of an execution.
+ *
+ * @param form the form of the current stage to fill out or the result of the
+ * execution.
+ */
+ protected void setForm(Form form) {
+ data.setForm(form.getDataFormToSend());
+ }
+
+ /**
+ * Executes the command. This is invoked only on the first stage of the
+ * command. It is invoked on every command. If there is a problem executing
+ * the command it throws an XMPPException.
+ *
+ * @throws XMPPException if there is an error executing the command.
+ */
+ public abstract void execute() throws XMPPException;
+
+ /**
+ * Executes the next action of the command with the information provided in
+ * the <code>response</code>. This form must be the answer form of the
+ * previous stage. This method will be only invoked for commands that have one
+ * or more stages. If there is a problem executing the command it throws an
+ * XMPPException.
+ *
+ * @param response the form answer of the previous stage.
+ * @throws XMPPException if there is a problem executing the command.
+ */
+ public abstract void next(Form response) throws XMPPException;
+
+ /**
+ * Completes the command execution with the information provided in the
+ * <code>response</code>. This form must be the answer form of the
+ * previous stage. This method will be only invoked for commands that have one
+ * or more stages. If there is a problem executing the command it throws an
+ * XMPPException.
+ *
+ * @param response the form answer of the previous stage.
+ * @throws XMPPException if there is a problem executing the command.
+ */
+ public abstract void complete(Form response) throws XMPPException;
+
+ /**
+ * Goes to the previous stage. The requester is asking to re-send the
+ * information of the previous stage. The command must change it state to
+ * the previous one. If there is a problem executing the command it throws
+ * an XMPPException.
+ *
+ * @throws XMPPException if there is a problem executing the command.
+ */
+ public abstract void prev() throws XMPPException;
+
+ /**
+ * Cancels the execution of the command. This can be invoked on any stage of
+ * the execution. If there is a problem executing the command it throws an
+ * XMPPException.
+ *
+ * @throws XMPPException if there is a problem executing the command.
+ */
+ public abstract void cancel() throws XMPPException;
+
+ /**
+ * Returns a collection with the allowed actions based on the current stage.
+ * Possible actions are: {@link Action#prev prev}, {@link Action#next next} and
+ * {@link Action#complete complete}. This method will be only invoked for commands that
+ * have one or more stages.
+ *
+ * @return a collection with the allowed actions based on the current stage
+ * as defined in the SessionData.
+ */
+ protected List<Action> getActions() {
+ return data.getActions();
+ }
+
+ /**
+ * Add an action to the current stage available actions. This should be used
+ * when creating a response.
+ *
+ * @param action the action.
+ */
+ protected void addActionAvailable(Action action) {
+ data.addAction(action);
+ }
+
+ /**
+ * Returns the action available for the current stage which is
+ * considered the equivalent to "execute". When the requester sends his
+ * reply, if no action was defined in the command then the action will be
+ * assumed "execute" thus assuming the action returned by this method. This
+ * method will never be invoked for commands that have no stages.
+ *
+ * @return the action available for the current stage which is considered
+ * the equivalent to "execute".
+ */
+ protected Action getExecuteAction() {
+ return data.getExecuteAction();
+ }
+
+ /**
+ * Sets which of the actions available for the current stage is
+ * considered the equivalent to "execute". This should be used when setting
+ * a response. When the requester sends his reply, if no action was defined
+ * in the command then the action will be assumed "execute" thus assuming
+ * the action returned by this method.
+ *
+ * @param action the action.
+ */
+ protected void setExecuteAction(Action action) {
+ data.setExecuteAction(action);
+ }
+
+ /**
+ * Returns the status of the current stage.
+ *
+ * @return the current status.
+ */
+ public Status getStatus() {
+ return data.getStatus();
+ }
+
+ /**
+ * Sets the data of the current stage. This should not used.
+ *
+ * @param data the data.
+ */
+ void setData(AdHocCommandData data) {
+ this.data = data;
+ }
+
+ /**
+ * Gets the data of the current stage. This should not used.
+ *
+ * @return the data.
+ */
+ AdHocCommandData getData() {
+ return data;
+ }
+
+ /**
+ * Returns true if the <code>action</code> is available in the current stage.
+ * The {@link Action#cancel cancel} action is always allowed. To define the
+ * available actions use the <code>addActionAvailable</code> method.
+ *
+ * @param action
+ * The action to check if it is available.
+ * @return True if the action is available for the current stage.
+ */
+ protected boolean isValidAction(Action action) {
+ return getActions().contains(action) || Action.cancel.equals(action);
+ }
+
+ /**
+ * The status of the stage in the adhoc command.
+ */
+ public enum Status {
+
+ /**
+ * The command is being executed.
+ */
+ executing,
+
+ /**
+ * The command has completed. The command session has ended.
+ */
+ completed,
+
+ /**
+ * The command has been canceled. The command session has ended.
+ */
+ canceled
+ }
+
+ public enum Action {
+
+ /**
+ * The command should be executed or continue to be executed. This is
+ * the default value.
+ */
+ execute,
+
+ /**
+ * The command should be canceled.
+ */
+ cancel,
+
+ /**
+ * The command should be digress to the previous stage of execution.
+ */
+ prev,
+
+ /**
+ * The command should progress to the next stage of execution.
+ */
+ next,
+
+ /**
+ * The command should be completed (if possible).
+ */
+ complete,
+
+ /**
+ * The action is unknow. This is used when a recieved message has an
+ * unknown action. It must not be used to send an execution request.
+ */
+ unknown
+ }
+
+ public enum SpecificErrorCondition {
+
+ /**
+ * The responding JID cannot accept the specified action.
+ */
+ badAction("bad-action"),
+
+ /**
+ * The responding JID does not understand the specified action.
+ */
+ malformedAction("malformed-action"),
+
+ /**
+ * The responding JID cannot accept the specified language/locale.
+ */
+ badLocale("bad-locale"),
+
+ /**
+ * The responding JID cannot accept the specified payload (e.g. the data
+ * form did not provide one or more required fields).
+ */
+ badPayload("bad-payload"),
+
+ /**
+ * The responding JID cannot accept the specified sessionid.
+ */
+ badSessionid("bad-sessionid"),
+
+ /**
+ * The requesting JID specified a sessionid that is no longer active
+ * (either because it was completed, canceled, or timed out).
+ */
+ sessionExpired("session-expired");
+
+ private String value;
+
+ SpecificErrorCondition(String value) {
+ this.value = value;
+ }
+
+ public String toString() {
+ return value;
+ }
+ }
+}
\ No newline at end of file diff --git a/src/org/jivesoftware/smackx/commands/AdHocCommandManager.java b/src/org/jivesoftware/smackx/commands/AdHocCommandManager.java new file mode 100755 index 0000000..8dac999 --- /dev/null +++ b/src/org/jivesoftware/smackx/commands/AdHocCommandManager.java @@ -0,0 +1,753 @@ +/**
+ * $RCSfile$
+ * $Revision$
+ * $Date$
+ *
+ * Copyright 2005-2008 Jive Software.
+ *
+ * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jivesoftware.smackx.commands;
+
+import org.jivesoftware.smack.*;
+import org.jivesoftware.smack.filter.PacketFilter;
+import org.jivesoftware.smack.filter.PacketTypeFilter;
+import org.jivesoftware.smack.packet.IQ;
+import org.jivesoftware.smack.packet.Packet;
+import org.jivesoftware.smack.packet.PacketExtension;
+import org.jivesoftware.smack.packet.XMPPError;
+import org.jivesoftware.smack.util.StringUtils;
+import org.jivesoftware.smackx.Form;
+import org.jivesoftware.smackx.NodeInformationProvider;
+import org.jivesoftware.smackx.ServiceDiscoveryManager;
+import org.jivesoftware.smackx.commands.AdHocCommand.Action;
+import org.jivesoftware.smackx.commands.AdHocCommand.Status;
+import org.jivesoftware.smackx.packet.AdHocCommandData;
+import org.jivesoftware.smackx.packet.DiscoverInfo;
+import org.jivesoftware.smackx.packet.DiscoverInfo.Identity;
+import org.jivesoftware.smackx.packet.DiscoverItems;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.WeakHashMap;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * An AdHocCommandManager is responsible for keeping the list of available
+ * commands offered by a service and for processing commands requests.
+ *
+ * Pass in a Connection instance to
+ * {@link #getAddHocCommandsManager(org.jivesoftware.smack.Connection)} in order to
+ * get an instance of this class.
+ *
+ * @author Gabriel Guardincerri
+ */
+public class AdHocCommandManager {
+
+ private static final String DISCO_NAMESPACE = "http://jabber.org/protocol/commands";
+
+ private static final String discoNode = DISCO_NAMESPACE;
+
+ /**
+ * The session time out in seconds.
+ */
+ private static final int SESSION_TIMEOUT = 2 * 60;
+
+ /**
+ * Map a Connection with it AdHocCommandManager. This map have a key-value
+ * pair for every active connection.
+ */
+ private static Map<Connection, AdHocCommandManager> instances =
+ new ConcurrentHashMap<Connection, AdHocCommandManager>();
+
+ /**
+ * Register the listener for all the connection creations. When a new
+ * connection is created a new AdHocCommandManager is also created and
+ * related to that connection.
+ */
+ static {
+ Connection.addConnectionCreationListener(new ConnectionCreationListener() {
+ public void connectionCreated(Connection connection) {
+ new AdHocCommandManager(connection);
+ }
+ });
+ }
+
+ /**
+ * Returns the <code>AdHocCommandManager</code> related to the
+ * <code>connection</code>.
+ *
+ * @param connection the XMPP connection.
+ * @return the AdHocCommandManager associated with the connection.
+ */
+ public static AdHocCommandManager getAddHocCommandsManager(Connection connection) {
+ return instances.get(connection);
+ }
+
+ /**
+ * Thread that reaps stale sessions.
+ */
+ private Thread sessionsSweeper;
+
+ /**
+ * The Connection that this instances of AdHocCommandManager manages
+ */
+ private Connection connection;
+
+ /**
+ * Map a command node with its AdHocCommandInfo. Note: Key=command node,
+ * Value=command. Command node matches the node attribute sent by command
+ * requesters.
+ */
+ private Map<String, AdHocCommandInfo> commands = Collections
+ .synchronizedMap(new WeakHashMap<String, AdHocCommandInfo>());
+
+ /**
+ * Map a command session ID with the instance LocalCommand. The LocalCommand
+ * is the an objects that has all the information of the current state of
+ * the command execution. Note: Key=session ID, Value=LocalCommand. Session
+ * ID matches the sessionid attribute sent by command responders.
+ */
+ private Map<String, LocalCommand> executingCommands = new ConcurrentHashMap<String, LocalCommand>();
+
+ private AdHocCommandManager(Connection connection) {
+ super();
+ this.connection = connection;
+ init();
+ }
+
+ /**
+ * Registers a new command with this command manager, which is related to a
+ * connection. The <tt>node</tt> is an unique identifier of that command for
+ * the connection related to this command manager. The <tt>name</tt> is the
+ * human readable name of the command. The <tt>class</tt> is the class of
+ * the command, which must extend {@link LocalCommand} and have a default
+ * constructor.
+ *
+ * @param node the unique identifier of the command.
+ * @param name the human readable name of the command.
+ * @param clazz the class of the command, which must extend {@link LocalCommand}.
+ */
+ public void registerCommand(String node, String name, final Class<? extends LocalCommand> clazz) {
+ registerCommand(node, name, new LocalCommandFactory() {
+ public LocalCommand getInstance() throws InstantiationException, IllegalAccessException {
+ return clazz.newInstance();
+ }
+ });
+ }
+
+ /**
+ * Registers a new command with this command manager, which is related to a
+ * connection. The <tt>node</tt> is an unique identifier of that
+ * command for the connection related to this command manager. The <tt>name</tt>
+ * is the human readeale name of the command. The <tt>factory</tt> generates
+ * new instances of the command.
+ *
+ * @param node the unique identifier of the command.
+ * @param name the human readable name of the command.
+ * @param factory a factory to create new instances of the command.
+ */
+ public void registerCommand(String node, final String name, LocalCommandFactory factory) {
+ AdHocCommandInfo commandInfo = new AdHocCommandInfo(node, name, connection.getUser(), factory);
+
+ commands.put(node, commandInfo);
+ // Set the NodeInformationProvider that will provide information about
+ // the added command
+ ServiceDiscoveryManager.getInstanceFor(connection).setNodeInformationProvider(node,
+ new NodeInformationProvider() {
+ public List<DiscoverItems.Item> getNodeItems() {
+ return null;
+ }
+
+ public List<String> getNodeFeatures() {
+ List<String> answer = new ArrayList<String>();
+ answer.add(DISCO_NAMESPACE);
+ // TODO: check if this service is provided by the
+ // TODO: current connection.
+ answer.add("jabber:x:data");
+ return answer;
+ }
+
+ public List<DiscoverInfo.Identity> getNodeIdentities() {
+ List<DiscoverInfo.Identity> answer = new ArrayList<DiscoverInfo.Identity>();
+ DiscoverInfo.Identity identity = new DiscoverInfo.Identity(
+ "automation", name, "command-node");
+ answer.add(identity);
+ return answer;
+ }
+
+ @Override
+ public List<PacketExtension> getNodePacketExtensions() {
+ return null;
+ }
+
+ });
+ }
+
+ /**
+ * Discover the commands of an specific JID. The <code>jid</code> is a
+ * full JID.
+ *
+ * @param jid the full JID to retrieve the commands for.
+ * @return the discovered items.
+ * @throws XMPPException if the operation failed for some reason.
+ */
+ public DiscoverItems discoverCommands(String jid) throws XMPPException {
+ ServiceDiscoveryManager serviceDiscoveryManager = ServiceDiscoveryManager
+ .getInstanceFor(connection);
+ return serviceDiscoveryManager.discoverItems(jid, discoNode);
+ }
+
+ /**
+ * Publish the commands to an specific JID.
+ *
+ * @param jid the full JID to publish the commands to.
+ * @throws XMPPException if the operation failed for some reason.
+ */
+ public void publishCommands(String jid) throws XMPPException {
+ ServiceDiscoveryManager serviceDiscoveryManager = ServiceDiscoveryManager
+ .getInstanceFor(connection);
+
+ // Collects the commands to publish as items
+ DiscoverItems discoverItems = new DiscoverItems();
+ Collection<AdHocCommandInfo> xCommandsList = getRegisteredCommands();
+
+ for (AdHocCommandInfo info : xCommandsList) {
+ DiscoverItems.Item item = new DiscoverItems.Item(info.getOwnerJID());
+ item.setName(info.getName());
+ item.setNode(info.getNode());
+ discoverItems.addItem(item);
+ }
+
+ serviceDiscoveryManager.publishItems(jid, discoNode, discoverItems);
+ }
+
+ /**
+ * Returns a command that represents an instance of a command in a remote
+ * host. It is used to execute remote commands. The concept is similar to
+ * RMI. Every invocation on this command is equivalent to an invocation in
+ * the remote command.
+ *
+ * @param jid the full JID of the host of the remote command
+ * @param node the identifier of the command
+ * @return a local instance equivalent to the remote command.
+ */
+ public RemoteCommand getRemoteCommand(String jid, String node) {
+ return new RemoteCommand(connection, node, jid);
+ }
+
+ /**
+ * <ul>
+ * <li>Adds listeners to the connection</li>
+ * <li>Registers the ad-hoc command feature to the ServiceDiscoveryManager</li>
+ * <li>Registers the items of the feature</li>
+ * <li>Adds packet listeners to handle execution requests</li>
+ * <li>Creates and start the session sweeper</li>
+ * </ul>
+ */
+ private void init() {
+ // Register the new instance and associate it with the connection
+ instances.put(connection, this);
+
+ // Add a listener to the connection that removes the registered instance
+ // when the connection is closed
+ connection.addConnectionListener(new ConnectionListener() {
+ public void connectionClosed() {
+ // Unregister this instance since the connection has been closed
+ instances.remove(connection);
+ }
+
+ public void connectionClosedOnError(Exception e) {
+ // Unregister this instance since the connection has been closed
+ instances.remove(connection);
+ }
+
+ public void reconnectionSuccessful() {
+ // Register this instance since the connection has been
+ // reestablished
+ instances.put(connection, AdHocCommandManager.this);
+ }
+
+ public void reconnectingIn(int seconds) {
+ // Nothing to do
+ }
+
+ public void reconnectionFailed(Exception e) {
+ // Nothing to do
+ }
+ });
+
+ // Add the feature to the service discovery manage to show that this
+ // connection supports the AdHoc-Commands protocol.
+ // This information will be used when another client tries to
+ // discover whether this client supports AdHoc-Commands or not.
+ ServiceDiscoveryManager.getInstanceFor(connection).addFeature(
+ DISCO_NAMESPACE);
+
+ // Set the NodeInformationProvider that will provide information about
+ // which AdHoc-Commands are registered, whenever a disco request is
+ // received
+ ServiceDiscoveryManager.getInstanceFor(connection)
+ .setNodeInformationProvider(discoNode,
+ new NodeInformationProvider() {
+ public List<DiscoverItems.Item> getNodeItems() {
+
+ List<DiscoverItems.Item> answer = new ArrayList<DiscoverItems.Item>();
+ Collection<AdHocCommandInfo> commandsList = getRegisteredCommands();
+
+ for (AdHocCommandInfo info : commandsList) {
+ DiscoverItems.Item item = new DiscoverItems.Item(
+ info.getOwnerJID());
+ item.setName(info.getName());
+ item.setNode(info.getNode());
+ answer.add(item);
+ }
+
+ return answer;
+ }
+
+ public List<String> getNodeFeatures() {
+ return null;
+ }
+
+ public List<Identity> getNodeIdentities() {
+ return null;
+ }
+
+ @Override
+ public List<PacketExtension> getNodePacketExtensions() {
+ return null;
+ }
+ });
+
+ // The packet listener and the filter for processing some AdHoc Commands
+ // Packets
+ PacketListener listener = new PacketListener() {
+ public void processPacket(Packet packet) {
+ AdHocCommandData requestData = (AdHocCommandData) packet;
+ processAdHocCommand(requestData);
+ }
+ };
+
+ PacketFilter filter = new PacketTypeFilter(AdHocCommandData.class);
+ connection.addPacketListener(listener, filter);
+
+ sessionsSweeper = null;
+ }
+
+ /**
+ * Process the AdHoc-Command packet that request the execution of some
+ * action of a command. If this is the first request, this method checks,
+ * before executing the command, if:
+ * <ul>
+ * <li>The requested command exists</li>
+ * <li>The requester has permissions to execute it</li>
+ * <li>The command has more than one stage, if so, it saves the command and
+ * session ID for further use</li>
+ * </ul>
+ *
+ * <br>
+ * <br>
+ * If this is not the first request, this method checks, before executing
+ * the command, if:
+ * <ul>
+ * <li>The session ID of the request was stored</li>
+ * <li>The session life do not exceed the time out</li>
+ * <li>The action to execute is one of the available actions</li>
+ * </ul>
+ *
+ * @param requestData
+ * the packet to process.
+ */
+ private void processAdHocCommand(AdHocCommandData requestData) {
+ // Only process requests of type SET
+ if (requestData.getType() != IQ.Type.SET) {
+ return;
+ }
+
+ // Creates the response with the corresponding data
+ AdHocCommandData response = new AdHocCommandData();
+ response.setTo(requestData.getFrom());
+ response.setPacketID(requestData.getPacketID());
+ response.setNode(requestData.getNode());
+ response.setId(requestData.getTo());
+
+ String sessionId = requestData.getSessionID();
+ String commandNode = requestData.getNode();
+
+ if (sessionId == null) {
+ // A new execution request has been received. Check that the
+ // command exists
+ if (!commands.containsKey(commandNode)) {
+ // Requested command does not exist so return
+ // item_not_found error.
+ respondError(response, XMPPError.Condition.item_not_found);
+ return;
+ }
+
+ // Create new session ID
+ sessionId = StringUtils.randomString(15);
+
+ try {
+ // Create a new instance of the command with the
+ // corresponding sessioid
+ LocalCommand command = newInstanceOfCmd(commandNode, sessionId);
+
+ response.setType(IQ.Type.RESULT);
+ command.setData(response);
+
+ // Check that the requester has enough permission.
+ // Answer forbidden error if requester permissions are not
+ // enough to execute the requested command
+ if (!command.hasPermission(requestData.getFrom())) {
+ respondError(response, XMPPError.Condition.forbidden);
+ return;
+ }
+
+ Action action = requestData.getAction();
+
+ // If the action is unknown then respond an error.
+ if (action != null && action.equals(Action.unknown)) {
+ respondError(response, XMPPError.Condition.bad_request,
+ AdHocCommand.SpecificErrorCondition.malformedAction);
+ return;
+ }
+
+ // If the action is not execute, then it is an invalid action.
+ if (action != null && !action.equals(Action.execute)) {
+ respondError(response, XMPPError.Condition.bad_request,
+ AdHocCommand.SpecificErrorCondition.badAction);
+ return;
+ }
+
+ // Increase the state number, so the command knows in witch
+ // stage it is
+ command.incrementStage();
+ // Executes the command
+ command.execute();
+
+ if (command.isLastStage()) {
+ // If there is only one stage then the command is completed
+ response.setStatus(Status.completed);
+ }
+ else {
+ // Else it is still executing, and is registered to be
+ // available for the next call
+ response.setStatus(Status.executing);
+ executingCommands.put(sessionId, command);
+ // See if the session reaping thread is started. If not, start it.
+ if (sessionsSweeper == null) {
+ sessionsSweeper = new Thread(new Runnable() {
+ public void run() {
+ while (true) {
+ for (String sessionId : executingCommands.keySet()) {
+ LocalCommand command = executingCommands.get(sessionId);
+ // Since the command could be removed in the meanwhile
+ // of getting the key and getting the value - by a
+ // processed packet. We must check if it still in the
+ // map.
+ if (command != null) {
+ long creationStamp = command.getCreationDate();
+ // Check if the Session data has expired (default is
+ // 10 minutes)
+ // To remove it from the session list it waits for
+ // the double of the of time out time. This is to
+ // let
+ // the requester know why his execution request is
+ // not accepted. If the session is removed just
+ // after the time out, then whe the user request to
+ // continue the execution he will recieved an
+ // invalid session error and not a time out error.
+ if (System.currentTimeMillis() - creationStamp > SESSION_TIMEOUT * 1000 * 2) {
+ // Remove the expired session
+ executingCommands.remove(sessionId);
+ }
+ }
+ }
+ try {
+ Thread.sleep(1000);
+ }
+ catch (InterruptedException ie) {
+ // Ignore.
+ }
+ }
+ }
+
+ });
+ sessionsSweeper.setDaemon(true);
+ sessionsSweeper.start();
+ }
+ }
+
+ // Sends the response packet
+ connection.sendPacket(response);
+
+ }
+ catch (XMPPException e) {
+ // If there is an exception caused by the next, complete,
+ // prev or cancel method, then that error is returned to the
+ // requester.
+ XMPPError error = e.getXMPPError();
+
+ // If the error type is cancel, then the execution is
+ // canceled therefore the status must show that, and the
+ // command be removed from the executing list.
+ if (XMPPError.Type.CANCEL.equals(error.getType())) {
+ response.setStatus(Status.canceled);
+ executingCommands.remove(sessionId);
+ }
+ respondError(response, error);
+ e.printStackTrace();
+ }
+ }
+ else {
+ LocalCommand command = executingCommands.get(sessionId);
+
+ // Check that a command exists for the specified sessionID
+ // This also handles if the command was removed in the meanwhile
+ // of getting the key and the value of the map.
+ if (command == null) {
+ respondError(response, XMPPError.Condition.bad_request,
+ AdHocCommand.SpecificErrorCondition.badSessionid);
+ return;
+ }
+
+ // Check if the Session data has expired (default is 10 minutes)
+ long creationStamp = command.getCreationDate();
+ if (System.currentTimeMillis() - creationStamp > SESSION_TIMEOUT * 1000) {
+ // Remove the expired session
+ executingCommands.remove(sessionId);
+
+ // Answer a not_allowed error (session-expired)
+ respondError(response, XMPPError.Condition.not_allowed,
+ AdHocCommand.SpecificErrorCondition.sessionExpired);
+ return;
+ }
+
+ /*
+ * Since the requester could send two requests for the same
+ * executing command i.e. the same session id, all the execution of
+ * the action must be synchronized to avoid inconsistencies.
+ */
+ synchronized (command) {
+ Action action = requestData.getAction();
+
+ // If the action is unknown the respond an error
+ if (action != null && action.equals(Action.unknown)) {
+ respondError(response, XMPPError.Condition.bad_request,
+ AdHocCommand.SpecificErrorCondition.malformedAction);
+ return;
+ }
+
+ // If the user didn't specify an action or specify the execute
+ // action then follow the actual default execute action
+ if (action == null || Action.execute.equals(action)) {
+ action = command.getExecuteAction();
+ }
+
+ // Check that the specified action was previously
+ // offered
+ if (!command.isValidAction(action)) {
+ respondError(response, XMPPError.Condition.bad_request,
+ AdHocCommand.SpecificErrorCondition.badAction);
+ return;
+ }
+
+ try {
+ // TODO: Check that all the requierd fields of the form are
+ // TODO: filled, if not throw an exception. This will simplify the
+ // TODO: construction of new commands
+
+ // Since all errors were passed, the response is now a
+ // result
+ response.setType(IQ.Type.RESULT);
+
+ // Set the new data to the command.
+ command.setData(response);
+
+ if (Action.next.equals(action)) {
+ command.incrementStage();
+ command.next(new Form(requestData.getForm()));
+ if (command.isLastStage()) {
+ // If it is the last stage then the command is
+ // completed
+ response.setStatus(Status.completed);
+ }
+ else {
+ // Otherwise it is still executing
+ response.setStatus(Status.executing);
+ }
+ }
+ else if (Action.complete.equals(action)) {
+ command.incrementStage();
+ command.complete(new Form(requestData.getForm()));
+ response.setStatus(Status.completed);
+ // Remove the completed session
+ executingCommands.remove(sessionId);
+ }
+ else if (Action.prev.equals(action)) {
+ command.decrementStage();
+ command.prev();
+ }
+ else if (Action.cancel.equals(action)) {
+ command.cancel();
+ response.setStatus(Status.canceled);
+ // Remove the canceled session
+ executingCommands.remove(sessionId);
+ }
+
+ connection.sendPacket(response);
+ }
+ catch (XMPPException e) {
+ // If there is an exception caused by the next, complete,
+ // prev or cancel method, then that error is returned to the
+ // requester.
+ XMPPError error = e.getXMPPError();
+
+ // If the error type is cancel, then the execution is
+ // canceled therefore the status must show that, and the
+ // command be removed from the executing list.
+ if (XMPPError.Type.CANCEL.equals(error.getType())) {
+ response.setStatus(Status.canceled);
+ executingCommands.remove(sessionId);
+ }
+ respondError(response, error);
+
+ e.printStackTrace();
+ }
+ }
+ }
+ }
+
+ /**
+ * Responds an error with an specific condition.
+ *
+ * @param response the response to send.
+ * @param condition the condition of the error.
+ */
+ private void respondError(AdHocCommandData response,
+ XMPPError.Condition condition) {
+ respondError(response, new XMPPError(condition));
+ }
+
+ /**
+ * Responds an error with an specific condition.
+ *
+ * @param response the response to send.
+ * @param condition the condition of the error.
+ * @param specificCondition the adhoc command error condition.
+ */
+ private void respondError(AdHocCommandData response, XMPPError.Condition condition,
+ AdHocCommand.SpecificErrorCondition specificCondition)
+ {
+ XMPPError error = new XMPPError(condition);
+ error.addExtension(new AdHocCommandData.SpecificError(specificCondition));
+ respondError(response, error);
+ }
+
+ /**
+ * Responds an error with an specific error.
+ *
+ * @param response the response to send.
+ * @param error the error to send.
+ */
+ private void respondError(AdHocCommandData response, XMPPError error) {
+ response.setType(IQ.Type.ERROR);
+ response.setError(error);
+ connection.sendPacket(response);
+ }
+
+ /**
+ * Creates a new instance of a command to be used by a new execution request
+ *
+ * @param commandNode the command node that identifies it.
+ * @param sessionID the session id of this execution.
+ * @return the command instance to execute.
+ * @throws XMPPException if there is problem creating the new instance.
+ */
+ private LocalCommand newInstanceOfCmd(String commandNode, String sessionID)
+ throws XMPPException
+ {
+ AdHocCommandInfo commandInfo = commands.get(commandNode);
+ LocalCommand command;
+ try {
+ command = (LocalCommand) commandInfo.getCommandInstance();
+ command.setSessionID(sessionID);
+ command.setName(commandInfo.getName());
+ command.setNode(commandInfo.getNode());
+ }
+ catch (InstantiationException e) {
+ e.printStackTrace();
+ throw new XMPPException(new XMPPError(
+ XMPPError.Condition.interna_server_error));
+ }
+ catch (IllegalAccessException e) {
+ e.printStackTrace();
+ throw new XMPPException(new XMPPError(
+ XMPPError.Condition.interna_server_error));
+ }
+ return command;
+ }
+
+ /**
+ * Returns the registered commands of this command manager, which is related
+ * to a connection.
+ *
+ * @return the registered commands.
+ */
+ private Collection<AdHocCommandInfo> getRegisteredCommands() {
+ return commands.values();
+ }
+
+ /**
+ * Stores ad-hoc command information.
+ */
+ private static class AdHocCommandInfo {
+
+ private String node;
+ private String name;
+ private String ownerJID;
+ private LocalCommandFactory factory;
+
+ public AdHocCommandInfo(String node, String name, String ownerJID,
+ LocalCommandFactory factory)
+ {
+ this.node = node;
+ this.name = name;
+ this.ownerJID = ownerJID;
+ this.factory = factory;
+ }
+
+ public LocalCommand getCommandInstance() throws InstantiationException,
+ IllegalAccessException
+ {
+ return factory.getInstance();
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public String getNode() {
+ return node;
+ }
+
+ public String getOwnerJID() {
+ return ownerJID;
+ }
+ }
+} diff --git a/src/org/jivesoftware/smackx/commands/AdHocCommandNote.java b/src/org/jivesoftware/smackx/commands/AdHocCommandNote.java new file mode 100755 index 0000000..10dedbe --- /dev/null +++ b/src/org/jivesoftware/smackx/commands/AdHocCommandNote.java @@ -0,0 +1,86 @@ +/**
+ * $RCSfile$
+ * $Revision$
+ * $Date$
+ *
+ * Copyright 2005-2007 Jive Software.
+ *
+ * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jivesoftware.smackx.commands;
+
+/**
+ * Notes can be added to a command execution response. A note has a type and value.
+ *
+ * @author Gabriel Guardincerri
+ */
+public class AdHocCommandNote {
+
+ private Type type;
+ private String value;
+
+ /**
+ * Creates a new adhoc command note with the specified type and value.
+ *
+ * @param type the type of the note.
+ * @param value the value of the note.
+ */
+ public AdHocCommandNote(Type type, String value) {
+ this.type = type;
+ this.value = value;
+ }
+
+ /**
+ * Returns the value or message of the note.
+ *
+ * @return the value or message of the note.
+ */
+ public String getValue() {
+ return value;
+ }
+
+ /**
+ * Return the type of the note.
+ *
+ * @return the type of the note.
+ */
+ public Type getType() {
+ return type;
+ }
+
+ /**
+ * Represents a note type.
+ */
+ public enum Type {
+
+ /**
+ * The note is informational only. This is not really an exceptional
+ * condition.
+ */
+ info,
+
+ /**
+ * The note indicates a warning. Possibly due to illogical (yet valid)
+ * data.
+ */
+ warn,
+
+ /**
+ * The note indicates an error. The text should indicate the reason for
+ * the error.
+ */
+ error
+ }
+
+}
\ No newline at end of file diff --git a/src/org/jivesoftware/smackx/commands/LocalCommand.java b/src/org/jivesoftware/smackx/commands/LocalCommand.java new file mode 100755 index 0000000..627d30e --- /dev/null +++ b/src/org/jivesoftware/smackx/commands/LocalCommand.java @@ -0,0 +1,169 @@ +/**
+ * $RCSfile$
+ * $Revision$
+ * $Date$
+ *
+ * Copyright 2005-2007 Jive Software.
+ *
+ * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jivesoftware.smackx.commands;
+
+import org.jivesoftware.smackx.packet.AdHocCommandData;
+
+/**
+ * Represents a command that can be executed locally from a remote location. This
+ * class must be extended to implement an specific ad-hoc command. This class
+ * provides some useful tools:<ul>
+ * <li>Node</li>
+ * <li>Name</li>
+ * <li>Session ID</li>
+ * <li>Current Stage</li>
+ * <li>Available actions</li>
+ * <li>Default action</li>
+ * </ul><p/>
+ * To implement a new command extend this class and implement all the abstract
+ * methods. When implementing the actions remember that they could be invoked
+ * several times, and that you must use the current stage number to know what to
+ * do.
+ *
+ * @author Gabriel Guardincerri
+ */
+public abstract class LocalCommand extends AdHocCommand {
+
+ /**
+ * The time stamp of first invokation of the command. Used to implement the session timeout.
+ */
+ private long creationDate;
+
+ /**
+ * The unique ID of the execution of the command.
+ */
+ private String sessionID;
+
+ /**
+ * The full JID of the host of the command.
+ */
+ private String ownerJID;
+
+ /**
+ * The number of the current stage.
+ */
+ private int currenStage;
+
+ public LocalCommand() {
+ super();
+ this.creationDate = System.currentTimeMillis();
+ currenStage = -1;
+ }
+
+ /**
+ * The sessionID is an unique identifier of an execution request. This is
+ * automatically handled and should not be called.
+ *
+ * @param sessionID the unique session id of this execution
+ */
+ public void setSessionID(String sessionID) {
+ this.sessionID = sessionID;
+ getData().setSessionID(sessionID);
+ }
+
+ /**
+ * Returns the session ID of this execution.
+ *
+ * @return the unique session id of this execution
+ */
+ public String getSessionID() {
+ return sessionID;
+ }
+
+ /**
+ * Sets the JID of the command host. This is automatically handled and should
+ * not be called.
+ *
+ * @param ownerJID the JID of the owner.
+ */
+ public void setOwnerJID(String ownerJID) {
+ this.ownerJID = ownerJID;
+ }
+
+ @Override
+ public String getOwnerJID() {
+ return ownerJID;
+ }
+
+ /**
+ * Returns the date the command was created.
+ *
+ * @return the date the command was created.
+ */
+ public long getCreationDate() {
+ return creationDate;
+ }
+
+ /**
+ * Returns true if the current stage is the last one. If it is then the
+ * execution of some action will complete the execution of the command.
+ * Commands that don't have multiple stages can always return <tt>true</tt>.
+ *
+ * @return true if the command is in the last stage.
+ */
+ public abstract boolean isLastStage();
+
+ /**
+ * Returns true if the specified requester has permission to execute all the
+ * stages of this action. This is checked when the first request is received,
+ * if the permission is grant then the requester will be able to execute
+ * all the stages of the command. It is not checked again during the
+ * execution.
+ *
+ * @param jid the JID to check permissions on.
+ * @return true if the user has permission to execute this action.
+ */
+ public abstract boolean hasPermission(String jid);
+
+ /**
+ * Returns the currently executing stage number. The first stage number is
+ * 0. During the execution of the first action this method will answer 0.
+ *
+ * @return the current stage number.
+ */
+ public int getCurrentStage() {
+ return currenStage;
+ }
+
+ @Override
+ void setData(AdHocCommandData data) {
+ data.setSessionID(sessionID);
+ super.setData(data);
+ }
+
+ /**
+ * Increase the current stage number. This is automatically handled and should
+ * not be called.
+ *
+ */
+ void incrementStage() {
+ currenStage++;
+ }
+
+ /**
+ * Decrease the current stage number. This is automatically handled and should
+ * not be called.
+ *
+ */
+ void decrementStage() {
+ currenStage--;
+ }
+}
\ No newline at end of file diff --git a/src/org/jivesoftware/smackx/commands/LocalCommandFactory.java b/src/org/jivesoftware/smackx/commands/LocalCommandFactory.java new file mode 100644 index 0000000..83fc455 --- /dev/null +++ b/src/org/jivesoftware/smackx/commands/LocalCommandFactory.java @@ -0,0 +1,43 @@ +/** + * $RCSfile$ + * $Revision$ + * $Date$ + * + * Copyright 2008 Jive Software. + * + * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.jivesoftware.smackx.commands; + +/** + * A factory for creating local commands. It's useful in cases where instantiation + * of a command is more complicated than just using the default constructor. For example, + * when arguments must be passed into the constructor or when using a dependency injection + * framework. When a LocalCommandFactory isn't used, you can provide the AdHocCommandManager + * a Class object instead. For more details, see + * {@link AdHocCommandManager#registerCommand(String, String, LocalCommandFactory)}. + * + * @author Matt Tucker + */ +public interface LocalCommandFactory { + + /** + * Returns an instance of a LocalCommand. + * + * @return a LocalCommand instance. + * @throws InstantiationException if creating an instance failed. + * @throws IllegalAccessException if creating an instance is not allowed. + */ + public LocalCommand getInstance() throws InstantiationException, IllegalAccessException; + +}
\ No newline at end of file diff --git a/src/org/jivesoftware/smackx/commands/RemoteCommand.java b/src/org/jivesoftware/smackx/commands/RemoteCommand.java new file mode 100755 index 0000000..3c2df1d --- /dev/null +++ b/src/org/jivesoftware/smackx/commands/RemoteCommand.java @@ -0,0 +1,201 @@ +/** + * $RCSfile$ + * $Revision$ + * $Date$ + * + * Copyright 2005-2007 Jive Software. + * + * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.jivesoftware.smackx.commands; + +import org.jivesoftware.smack.PacketCollector; +import org.jivesoftware.smack.SmackConfiguration; +import org.jivesoftware.smack.Connection; +import org.jivesoftware.smack.XMPPException; +import org.jivesoftware.smack.filter.PacketIDFilter; +import org.jivesoftware.smack.packet.IQ; +import org.jivesoftware.smack.packet.Packet; +import org.jivesoftware.smackx.Form; +import org.jivesoftware.smackx.packet.AdHocCommandData; + +/** + * Represents a command that is in a remote location. Invoking one of the + * {@link AdHocCommand.Action#execute execute}, {@link AdHocCommand.Action#next next}, + * {@link AdHocCommand.Action#prev prev}, {@link AdHocCommand.Action#cancel cancel} or + * {@link AdHocCommand.Action#complete complete} actions results in executing that + * action in the remote location. In response to that action the internal state + * of the this command instance will change. For example, if the command is a + * single stage command, then invoking the execute action will execute this + * action in the remote location. After that the local instance will have a + * state of "completed" and a form or notes that applies. + * + * @author Gabriel Guardincerri + * + */ +public class RemoteCommand extends AdHocCommand { + + /** + * The connection that is used to execute this command + */ + private Connection connection; + + /** + * The full JID of the command host + */ + private String jid; + + /** + * The session ID of this execution. + */ + private String sessionID; + + + /** + * The number of milliseconds to wait for a response from the server + * The default value is the default packet reply timeout (5000 ms). + */ + private long packetReplyTimeout; + + /** + * Creates a new RemoteCommand that uses an specific connection to execute a + * command identified by <code>node</code> in the host identified by + * <code>jid</code> + * + * @param connection the connection to use for the execution. + * @param node the identifier of the command. + * @param jid the JID of the host. + */ + protected RemoteCommand(Connection connection, String node, String jid) { + super(); + this.connection = connection; + this.jid = jid; + this.setNode(node); + this.packetReplyTimeout = SmackConfiguration.getPacketReplyTimeout(); + } + + @Override + public void cancel() throws XMPPException { + executeAction(Action.cancel, packetReplyTimeout); + } + + @Override + public void complete(Form form) throws XMPPException { + executeAction(Action.complete, form, packetReplyTimeout); + } + + @Override + public void execute() throws XMPPException { + executeAction(Action.execute, packetReplyTimeout); + } + + /** + * Executes the default action of the command with the information provided + * in the Form. This form must be the anwser form of the previous stage. If + * there is a problem executing the command it throws an XMPPException. + * + * @param form the form anwser of the previous stage. + * @throws XMPPException if an error occurs. + */ + public void execute(Form form) throws XMPPException { + executeAction(Action.execute, form, packetReplyTimeout); + } + + @Override + public void next(Form form) throws XMPPException { + executeAction(Action.next, form, packetReplyTimeout); + } + + @Override + public void prev() throws XMPPException { + executeAction(Action.prev, packetReplyTimeout); + } + + private void executeAction(Action action, long packetReplyTimeout) throws XMPPException { + executeAction(action, null, packetReplyTimeout); + } + + /** + * Executes the <code>action</codo> with the <code>form</code>. + * The action could be any of the available actions. The form must + * be the anwser of the previous stage. It can be <tt>null</tt> if it is the first stage. + * + * @param action the action to execute. + * @param form the form with the information. + * @param timeout the amount of time to wait for a reply. + * @throws XMPPException if there is a problem executing the command. + */ + private void executeAction(Action action, Form form, long timeout) throws XMPPException { + // TODO: Check that all the required fields of the form were filled, if + // TODO: not throw the corresponding exeption. This will make a faster response, + // TODO: since the request is stoped before it's sent. + AdHocCommandData data = new AdHocCommandData(); + data.setType(IQ.Type.SET); + data.setTo(getOwnerJID()); + data.setNode(getNode()); + data.setSessionID(sessionID); + data.setAction(action); + + if (form != null) { + data.setForm(form.getDataFormToSend()); + } + + PacketCollector collector = connection.createPacketCollector( + new PacketIDFilter(data.getPacketID())); + + connection.sendPacket(data); + + Packet response = collector.nextResult(timeout); + + // Cancel the collector. + collector.cancel(); + if (response == null) { + throw new XMPPException("No response from server on status set."); + } + if (response.getError() != null) { + throw new XMPPException(response.getError()); + } + + AdHocCommandData responseData = (AdHocCommandData) response; + this.sessionID = responseData.getSessionID(); + super.setData(responseData); + } + + @Override + public String getOwnerJID() { + return jid; + } + + /** + * Returns the number of milliseconds to wait for a respone. The + * {@link SmackConfiguration#getPacketReplyTimeout default} value + * should be adjusted for commands that can take a long time to execute. + * + * @return the number of milliseconds to wait for responses. + */ + public long getPacketReplyTimeout() { + return packetReplyTimeout; + } + + /** + * Returns the number of milliseconds to wait for a respone. The + * {@link SmackConfiguration#getPacketReplyTimeout default} value + * should be adjusted for commands that can take a long time to execute. + * + * @param packetReplyTimeout the number of milliseconds to wait for responses. + */ + public void setPacketReplyTimeout(long packetReplyTimeout) { + this.packetReplyTimeout = packetReplyTimeout; + } +}
\ No newline at end of file |