/*
* 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 org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.taskdefs.ExecTask;
import org.apache.tools.ant.types.FileSet;
import org.apache.tools.ant.types.Path;
import org.apache.tools.ant.types.PatternSet.NameEntry;
import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
/**
* Task to execute aidl.
*
* It expects 3 attributes:
* 'executable' ({@link Path} with a single path) for the location of the aidl executable
* 'framework' ({@link Path} with a single path) for the "preprocessed" file containing all the
* parcelables exported by the framework
* 'genFolder' ({@link Path} with a single path) for the location of the gen folder.
*
* It also expects one or more inner elements called "source" which are identical to {@link Path}
* elements.
*/
public class AidlExecTask extends Task {
private String mExecutable;
private String mFramework;
private String mGenFolder;
private final ArrayList mPaths = new ArrayList();
/**
* 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 setGenFolder(Path value) {
mGenFolder = TaskHelper.checkSinglePath("genFolder", 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.");
}
Project taskProject = getProject();
// build a list of all the source folders
ArrayList sourceFolders = new ArrayList();
for (Path p : mPaths) {
String[] values = p.list();
if (values != null) {
sourceFolders.addAll(Arrays.asList(values));
}
}
// now loop on all the source folders to find all the aidl to compile
// and compile them
for (String sourceFolder : sourceFolders) {
// create a fileset to find all the aidl files in the current source folder
FileSet fs = new FileSet();
fs.setProject(taskProject);
fs.setDir(new File(sourceFolder));
NameEntry include = fs.createInclude();
include.setName("**/*.aidl");
// loop through the results of the file set
Iterator> iter = fs.iterator();
while (iter.hasNext()) {
Object next = iter.next();
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);
}
task.createArg().setValue(next.toString());
// execute it.
task.execute();
}
}
}
}