aboutsummaryrefslogtreecommitdiff
path: root/src/org/jivesoftware/smackx/commands/LocalCommand.java
diff options
context:
space:
mode:
Diffstat (limited to 'src/org/jivesoftware/smackx/commands/LocalCommand.java')
-rwxr-xr-xsrc/org/jivesoftware/smackx/commands/LocalCommand.java169
1 files changed, 169 insertions, 0 deletions
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