1 files changed, 270 insertions, 0 deletions
diff --git a/src/plugins/preflighting.checkers/src/com/motorolamobility/preflighting/checkers/mainactivity/SingleMainActivityCondition.java b/src/plugins/preflighting.checkers/src/com/motorolamobility/preflighting/checkers/mainactivity/SingleMainActivityCondition.java
new file mode 100644
index 0000000..12357d0
--- /dev/null
+++ b/src/plugins/preflighting.checkers/src/com/motorolamobility/preflighting/checkers/mainactivity/SingleMainActivityCondition.java
@@ -0,0 +1,270 @@
+/*
+* Copyright (C) 2012 The Android Open Source Project
+*
+* 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 com.motorolamobility.preflighting.checkers.mainactivity;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import org.eclipse.core.runtime.IStatus;
+import org.w3c.dom.DOMException;
+import org.w3c.dom.Document;
+import org.w3c.dom.NamedNodeMap;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+
+import com.motorolamobility.preflighting.checkers.CheckerPlugin;
+import com.motorolamobility.preflighting.checkers.i18n.CheckerNLS;
+import com.motorolamobility.preflighting.core.applicationdata.ApplicationData;
+import com.motorolamobility.preflighting.core.applicationdata.XMLElement;
+import com.motorolamobility.preflighting.core.checker.condition.CanExecuteConditionStatus;
+import com.motorolamobility.preflighting.core.checker.condition.Condition;
+import com.motorolamobility.preflighting.core.checker.condition.ICondition;
+import com.motorolamobility.preflighting.core.devicespecification.DeviceSpecification;
+import com.motorolamobility.preflighting.core.exception.PreflightingCheckerException;
+import com.motorolamobility.preflighting.core.internal.cond.utils.ConditionUtils;
+import com.motorolamobility.preflighting.core.validation.ValidationManagerConfiguration;
+import com.motorolamobility.preflighting.core.validation.ValidationResult;
+import com.motorolamobility.preflighting.core.validation.ValidationResultData;
+
+/**
+ * Condition to check if the AndroidManifest has exactly one main activity declared. 
+ *
+ */
+public class SingleMainActivityCondition extends Condition implements ICondition
+{
+    /**
+     * Identifier of category LAUNCHER. 
+     */
+    private static final String ANDROID_INTENT_CATEGORY_LAUNCHER =
+            "android.intent.category.LAUNCHER";
+
+    /**
+     * Identifier of CATEGORY element.
+     */
+    private static final String CATEGORY_TAG = "category";
+
+    /**
+     * Identifier of action MAIN.
+     */
+    private static final String ANDROID_INTENT_ACTION_MAIN = "android.intent.action.MAIN";
+
+    /**
+     * Identifier of the android:name attribute.
+     */
+    private static final String ANDROID_NAME_ATTR = "android:name";
+
+    /**
+     * Identifier of the ACTION element.
+     */
+    private static final String ACTION_TAG = "action";
+
+    /**
+     * Identifier of the INTENT_FILTER element.
+     */
+    private static final String INTENT_FILTER_TAG = "intent-filter";
+
+    /**
+     * Identifier of the ACTIVITY element.
+     */
+    private static final String ACTIVITY_TAG = "activity";
+
+    private ValidationManagerConfiguration valManagerConfig;
+
+    private List<Integer> issuedLinesList = null;
+
+    private XMLElement manElement;
+
+    private static final String MAIN_ACTION_NODE =
+            "<action android:name=\"android.intent.action.MAIN\"/>";
+
+    /** 
+     * Check that AndroidManifet exists and has a manifest node.
+     * @see com.motorolamobility.preflighting.core.checker.condition.Condition#canExecute(com.motorolamobility.preflighting.core.applicationdata.ApplicationData, java.util.List)
+     */
+    @Override
+    public CanExecuteConditionStatus canExecute(ApplicationData data,
+            List<DeviceSpecification> deviceSpecs) throws PreflightingCheckerException
+    {
+        CanExecuteConditionStatus status =
+                new CanExecuteConditionStatus(IStatus.OK, CheckerPlugin.PLUGIN_ID, "");
+        status.setConditionId(getId());
+
+        XMLElement manElem = data.getManifestElement();
+        if (manElem == null)
+        {
+            status =
+                    new CanExecuteConditionStatus(IStatus.ERROR, CheckerPlugin.PLUGIN_ID,
+                            CheckerNLS.Invalid_ManifestFile);
+        }
+        else
+        {
+            Document manifestDoc = manElem.getDocument();
+
+            if (manifestDoc == null)
+            {
+                status =
+                        new CanExecuteConditionStatus(IStatus.ERROR, CheckerPlugin.PLUGIN_ID,
+                                CheckerNLS.Invalid_ManifestFile);
+            }
+        }
+        return status;
+    }
+
+    /** 
+     * Check if there is exactly one main activity declared on AndroidManifest.
+     * @see com.motorolamobility.preflighting.core.checker.condition.Condition#execute(com.motorolamobility.preflighting.core.applicationdata.ApplicationData, java.util.List, com.motorolamobility.preflighting.core.validation.ValidationManagerConfiguration, com.motorolamobility.preflighting.core.validation.ValidationResult)
+     */
+    @Override
+    public void execute(ApplicationData data, List<DeviceSpecification> deviceSpecs,
+            ValidationManagerConfiguration valManagerConfig, ValidationResult results)
+            throws PreflightingCheckerException
+    {
+        int mainActivityCount = 0;
+
+        this.valManagerConfig = valManagerConfig;
+        issuedLinesList = new ArrayList<Integer>();
+        manElement = data.getManifestElement();
+        Document manifestDoc = manElement.getDocument();
+
+        // get activity nodes
+        NodeList actLst = manifestDoc.getElementsByTagName(ACTIVITY_TAG); //$NON-NLS-1$
+
+        for (int i = 0; i < actLst.getLength(); i++)
+        {
+            NodeList intentFilterLst = actLst.item(i).getChildNodes();
+            for (int j = 0; j < intentFilterLst.getLength(); j++)
+            {
+                int currentIssuedLine = 0;
+
+                boolean actionFound = false;
+                boolean categoryFound = false;
+
+                Node intentFilterNode = intentFilterLst.item(j);
+                // get intent-filter nodes
+                if (intentFilterNode.getNodeName().equals(INTENT_FILTER_TAG)) //$NON-NLS-1$
+                {
+                    NodeList actionLst = intentFilterNode.getChildNodes();
+                    for (int k = 0; k < actionLst.getLength(); k++)
+                    {
+                        Node actionNode = actionLst.item(k);
+                        // get action nodes
+                        if (actionNode.getNodeName().equals(ACTION_TAG)) //$NON-NLS-1$
+                        {
+                            NamedNodeMap map = actionNode.getAttributes();
+                            // name attribute must be set to
+                            // android.intent.action.MAIN
+                            Node nameAtr = map.getNamedItem(ANDROID_NAME_ATTR); //$NON-NLS-1$
+
+                            try
+                            {
+                                if ((nameAtr != null)
+                                        && nameAtr.getNodeValue()
+                                                .equals(ANDROID_INTENT_ACTION_MAIN)) //$NON-NLS-1$
+                                {
+                                    actionFound = true;
+                                    // NOTE: the action node position is issued
+                                    currentIssuedLine = manElement.getNodeLineNumber(actionNode);
+                                }
+
+                            }
+                            catch (DOMException e)
+                            {
+                                // Error retrieving value of the action intent
+                                throw new PreflightingCheckerException(
+                                        CheckerNLS.MainActivityChecker_Exception_Get_Action_Intent_Value,
+                                        e);
+                            }
+                        }
+                        // get category nodes
+                        else if (actionNode.getNodeName().equals(CATEGORY_TAG)) //$NON-NLS-1$
+                        {
+                            NamedNodeMap map = actionNode.getAttributes();
+                            // name attribute must be set to
+                            // android.intent.category.LAUNCHER
+                            Node nameAtr = map.getNamedItem(ANDROID_NAME_ATTR); //$NON-NLS-1$
+                            try
+                            {
+                                if ((nameAtr != null)
+                                        && nameAtr.getNodeValue().equals(
+                                                ANDROID_INTENT_CATEGORY_LAUNCHER)) //$NON-NLS-1$
+                                {
+                                    categoryFound = true;
+                                }
+
+                            }
+                            catch (DOMException e)
+                            {
+                                // Error retrieving value of the category intent
+                                throw new PreflightingCheckerException(
+                                        CheckerNLS.MainActivityChecker_Exception_Get_Category_Intent_Value,
+                                        e);
+                            }
+                        }
+                    }
+                    // a main activity must have both category and action nodes
+                    if (categoryFound && actionFound)
+                    {
+                        mainActivityCount++;
+                        issuedLinesList.add(currentIssuedLine);
+                    }
+                }
+            }
+        }
+
+        createValidationResult(mainActivityCount, results);
+    }
+
+    private void createValidationResult(int mainActivityCount, ValidationResult results)
+    {
+        ValidationResultData resultData = new ValidationResultData();
+
+        // one main activity - OK
+        if (mainActivityCount == 1)
+        {
+            resultData.setSeverity(ValidationResultData.SEVERITY.OK);
+        }
+        else
+        {
+            resultData.setSeverity(getSeverityLevel());
+            resultData.setConditionID(getId());
+            resultData.setInfoURL(ConditionUtils.getDescriptionLink(getChecker().getId(), getId(),
+                    valManagerConfig));
+
+            // none main activity - WARNING
+            if (mainActivityCount == 0)
+            {
+                resultData.setIssueDescription(CheckerNLS.MainActivityChecker_noMainActivity);
+                resultData.addFileToIssueLines(manElement.getFile(),
+                        Collections.<Integer> emptyList());
+                resultData
+                        .setQuickFixSuggestion(CheckerNLS.MainActivityChecker_NoMainActivityFixSuggestion);
+            }
+            // more than one main activity - WARNING
+            else
+            {
+                resultData.setIssueDescription(CheckerNLS.MainActivityChecker_manyMainActivity);
+                resultData
+                        .setQuickFixSuggestion(CheckerNLS.MainActivityChecker_MoreThanOneMainActivityFixSuggestion);
+                resultData.addFileToIssueLines(manElement.getFile(), issuedLinesList);
+                resultData.setPreview(MAIN_ACTION_NODE);
+            }
+        }
+        results.addValidationResult(resultData);
+    }
+
+}