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/*
* Copyright (C) 2010 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.android.ant;
import com.android.sdklib.io.FileOp;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.taskdefs.ExecTask;
import org.apache.tools.ant.types.Path;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
/**
* Task to execute aidl.
* <p>
* It expects 5 attributes:<br>
* 'executable' ({@link Path} with a single path) for the location of the aidl executable<br>
* 'framework' ({@link Path} with a single path) for the "preprocessed" file containing all the
* parcelables exported by the framework<br>
* 'genFolder' ({@link Path} with a single path) for the location of the gen folder.
* 'aidlOutFolder' ({@link Path} with a single path) for the location of the bin/aidl folder to
* copy the aidl files.
* 'libraryBinAidlFolderPathRefid' the name of the reference to a path object that contains
* libraries aidl output folder.
*
* It also expects one or more inner elements called "source" which are identical to {@link Path}
* elements.
*/
public class AidlExecTask extends MultiFilesTask {
private String mExecutable;
private String mFramework;
private Path mLibraryBinAidlFolderPath;
private String mGenFolder;
private final ArrayList<Path> mPaths = new ArrayList<Path>();
private String mAidlOutFolder;
private class AidlProcessor implements SourceProcessor {
@Override
public String getSourceFileExtension() {
return "aidl";
}
@Override
public void process(String filePath, String sourceFolder,
List<String> sourceFolders, Project taskProject) {
ExecTask task = new ExecTask();
task.setProject(taskProject);
task.setOwningTarget(getOwningTarget());
task.setExecutable(mExecutable);
task.setTaskName("aidl");
task.setFailonerror(true);
task.createArg().setValue("-p" + mFramework);
task.createArg().setValue("-o" + mGenFolder);
// add all the source folders as import in case an aidl file in a source folder
// imports a parcelable from another source folder.
for (String importFolder : sourceFolders) {
task.createArg().setValue("-I" + importFolder);
}
// add all the library aidl folders to access parcelables that are in libraries
if (mLibraryBinAidlFolderPath != null) {
for (String importFolder : mLibraryBinAidlFolderPath.list()) {
task.createArg().setValue("-I" + importFolder);
}
}
// set auto dependency file creation
task.createArg().setValue("-a");
task.createArg().setValue(filePath);
// execute it.
task.execute();
// if we reach here, it was successful (execute throws an exception otherwise).
// Copy the file into the bin/aidl directory.
String relative = filePath.substring(sourceFolder.length());
if (relative.charAt(0) == '/' || relative.charAt(0) == File.separatorChar) {
relative = relative.substring(1);
}
try {
File dest = new File(mAidlOutFolder, relative);
File parent = dest.getParentFile();
parent.mkdirs();
FileOp op = new FileOp();
op.copyFile(new File(filePath), dest);
} catch (IOException e) {
throw new BuildException(e);
}
}
@Override
public void displayMessage(DisplayType type, int count) {
switch (type) {
case FOUND:
System.out.println(String.format("Found %1$d AIDL files.", count));
break;
case COMPILING:
if (count > 0) {
System.out.println(String.format("Compiling %1$d AIDL files.",
count));
} else {
System.out.println("No AIDL files to compile.");
}
break;
case REMOVE_OUTPUT:
System.out.println(String.format("Found %1$d obsolete output files to remove.",
count));
break;
case REMOVE_DEP:
System.out.println(
String.format("Found %1$d obsolete dependency files to remove.",
count));
break;
}
}
}
/**
* Sets the value of the "executable" attribute.
* @param executable the value.
*/
public void setExecutable(Path executable) {
mExecutable = TaskHelper.checkSinglePath("executable", executable);
}
public void setFramework(Path value) {
mFramework = TaskHelper.checkSinglePath("framework", value);
}
public void setLibraryBinAidlFolderPathRefid(String libraryBinAidlFolderPathRefid) {
Object libBinAidlRef = getProject().getReference(libraryBinAidlFolderPathRefid);
if (libBinAidlRef instanceof Path) {
mLibraryBinAidlFolderPath = (Path) libBinAidlRef;
}
}
public void setGenFolder(Path value) {
mGenFolder = TaskHelper.checkSinglePath("genFolder", value);
}
public void setAidlOutFolder(Path value) {
mAidlOutFolder = TaskHelper.checkSinglePath("aidlOutFolder", value);
}
public Path createSource() {
Path p = new Path(getProject());
mPaths.add(p);
return p;
}
@Override
public void execute() throws BuildException {
if (mExecutable == null) {
throw new BuildException("AidlExecTask's 'executable' is required.");
}
if (mFramework == null) {
throw new BuildException("AidlExecTask's 'framework' is required.");
}
if (mGenFolder == null) {
throw new BuildException("AidlExecTask's 'genFolder' is required.");
}
if (mAidlOutFolder == null) {
throw new BuildException("AidlExecTask's 'aidlOutFolder' is required.");
}
processFiles(new AidlProcessor(), mPaths, mGenFolder);
}
}
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