merging Protocol Buffers into master, updated for Ice 3.5

1 files changed, 371 insertions, 0 deletions

diff --git a/protobuf/demo/java/ant/ProtocTask.java b/protobuf/demo/java/ant/ProtocTask.java
new file mode 100644
index 00000000000..2c52bf3b37d
--- /dev/null
+++ b/protobuf/demo/java/ant/ProtocTask.java
@@ -0,0 +1,371 @@
+// **********************************************************************
+//
+// Copyright (c) 2003-2013 ZeroC, Inc. All rights reserved.
+//
+// This copy of Ice Protobuf is licensed to you under the terms
+// described in the ICE_PROTOBUF_LICENSE file included in this
+// distribution.
+//
+// **********************************************************************
+
+//package Ice.Ant;
+
+import org.apache.tools.ant.Task;
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.DirectoryScanner;
+import org.apache.tools.ant.types.FileSet;
+import org.apache.tools.ant.taskdefs.ExecTask;
+import org.apache.tools.ant.taskdefs.Execute;
+import org.apache.tools.ant.taskdefs.PumpStreamHandler;
+import org.apache.tools.ant.types.Commandline;
+import org.apache.tools.ant.types.Commandline.Argument;
+import org.apache.tools.ant.types.Path;
+import org.apache.tools.ant.types.Reference;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.StringReader;
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+
+/**
+ * An ant task for protoc.
+ *
+ * Attributes specific to protoc:
+ *
+ *   translator - The pathname of the translator (default: "protoc").
+ *   protocpath - The value for the --proto_path translator option.
+ *   outputdir - The value for the --java_out translator option.
+ *   dependencyfile - The file in which dependencies are stored (default: ".pbdepend").
+ *
+ * Example:
+ *
+ *    <project ...>
+ *        <taskdef name="protoc" classname="ProtocTask" />
+ *        <property name="protoc.dir" value="../include/protoc"/>
+ *        <target name="generate">
+ *            <mkdir dir="tags" />
+ *            <protoc tagdir="tags" outputdir="out">
+ *                <fileset dir="${protoc.dir}">
+ *                    <include name="*.ice" />
+ *                </fileset>
+ *            </protoc>
+ *        </target>
+ *    </project>
+ *
+ * The <taskdef> element installs the protoctask task.
+ */
+public class ProtocTask extends org.apache.tools.ant.Task
+{
+    public
+    ProtocTask()
+    {
+        _translator = null;
+        _outputDir = null;
+        _protocPath = null;
+        _outputDirString = null;
+    }
+
+    public void
+    setDependencyFile(File file)
+    {
+        _dependencyFile = file;
+    }
+
+    public void
+    setOutputdir(File dir)
+    {
+        _outputDir = dir;
+        _outputDirString = _outputDir.toString();
+        if(_outputDirString.indexOf(' ') != -1)
+        {
+            _outputDirString = '"' + _outputDirString + '"';
+        }
+    }
+
+    public void
+    setProtocpath(File dir)
+    {
+        _protocPath = dir.toString();
+    }
+
+    public void
+    setTranslator(File prog)
+    {
+        _translator = prog;
+    }
+
+    public FileSet
+    createFileset()
+    {
+        FileSet fileset = new FileSet();
+        _fileSets.add(fileset);
+
+        return fileset;
+    }
+
+    @SuppressWarnings("unchecked")
+    public void
+    execute()
+        throws BuildException
+    {
+        if(_fileSets.isEmpty())
+        {
+            throw new BuildException("No fileset specified");
+        }
+
+        //
+        // Read the set of dependencies for this task.
+        //
+        java.util.HashMap dependencies = readDependencies();
+
+        //
+        // Compose a list of the files that need to be translated. A
+        // file needs to translated if we can't find a dependency in
+        // the dependency table or if its dependency is not up-to-date
+        // anymore (the proto file changed since the dependency was
+        // last updated)
+        //
+        java.util.Vector<File> buildList = new java.util.Vector<File>();
+        java.util.Vector<File> skipList = new java.util.Vector<File>();
+        java.util.Iterator p = _fileSets.iterator();
+        while(p.hasNext())
+        {
+            FileSet fileset = (FileSet)p.next();
+
+            DirectoryScanner scanner = fileset.getDirectoryScanner(getProject());
+            scanner.scan();
+            String[] files = scanner.getIncludedFiles();
+            for(int i = 0; i < files.length; i++)
+            {
+                File proto = new File(fileset.getDir(getProject()), files[i]);
+
+                ProtoDependency depend = (ProtoDependency)dependencies.get(getTargetKey(proto.toString()));
+                if(depend == null || !depend.isUpToDate())
+                {
+                    buildList.addElement(proto);
+                }
+                else
+                {
+                    skipList.addElement(proto);
+                }
+            }
+
+            java.util.Iterator i = skipList.iterator();
+            while(i.hasNext())
+            {
+                File file = (File)i.next();
+                log("skipping " + file.getName());
+            }
+        }
+
+        //
+        // Run the translator
+        //
+        if(!buildList.isEmpty())
+        {
+            String translator;
+            if(_translator == null)
+            {
+                translator = "protoc";
+            }
+            else
+            {
+                translator = _translator.toString();
+            }
+
+            StringBuilder cmd = new StringBuilder(128);
+
+            //
+            // Add --java_out.
+            //
+            if(_outputDir != null)
+            {
+                cmd.append(" --java_out=");
+                cmd.append(stripDriveLetter(_outputDirString));
+            }
+
+            //
+            // Add --proto_path
+            //
+            if(_protocPath != null)
+            {
+                cmd.append(" --proto_path=");
+                cmd.append(stripDriveLetter(_protocPath));
+            }
+
+            //
+            // Add files to be translated
+            //
+            for(int i = 0; i < buildList.size(); i++)
+            {
+                File f = (File)buildList.elementAt(i);
+                cmd.append(" ");
+                String s = stripDriveLetter(f.toString());
+                if(s.indexOf(' ') != -1)
+                {
+                    cmd.append('"');
+                    cmd.append(s);
+                    cmd.append('"');
+                }
+                else
+                {
+                    cmd.append(s);
+                }
+            }
+
+            //
+            // Execute
+            //
+            log(translator + " " + cmd);
+            ExecTask task = (ExecTask)getProject().createTask("exec");
+            task.setFailonerror(true);
+            Argument arg = task.createArg();
+            arg.setLine(cmd.toString());
+            task.setExecutable(translator);
+            task.execute();
+
+            //
+            // Update dependency file.
+            //
+            for(int i = 0; i < buildList.size(); i++)
+            {
+                ProtoDependency depend = new ProtoDependency();
+                depend._timeStamp = new java.util.Date().getTime();
+                depend._dependency = ((File)buildList.elementAt(i)).toString();
+                dependencies.put(getTargetKey(depend._dependency), depend);
+            }
+
+            writeDependencies(dependencies);
+        }
+    }
+
+    private String
+    getTargetKey(String proto)
+    {
+        //
+        // Since the dependency file can be shared by several proto
+        // tasks we need to make sure that each dependency has a
+        // unique key. We use the name of the task, the output
+        // directory and the name of the proto file to be compiled.
+        //
+        // If there's two protoc tasks using the same dependency
+        // file, with the same output dir and which compiles the same
+        // protoc file they'll use the same dependency.
+        //
+        return "protoc " + _outputDir.toString() + " " + proto;
+    }
+
+    // This is to work around a bug with protoc, where it does not
+    // accept drive letters in path names. See
+    // http://bugzilla/bugzilla/show_bug.cgi?id=3349
+    //
+    private String
+    stripDriveLetter(String s)
+    {
+        if(s.length() > 1 && s.charAt(1) == ':')
+        {
+            return s.substring(2);
+        }
+        return s;
+    }
+
+    //
+    // Read the dependency file.
+    //
+    private java.util.HashMap
+    readDependencies()
+    {
+        if(_dependencyFile == null)
+        {
+            if(_outputDir != null)
+            {
+                _dependencyFile = new File(_outputDir, ".pbdepend");
+            }
+            else
+            {
+                _dependencyFile = new File(".pbdepend");
+            }
+        }
+
+        try
+        {
+            java.io.ObjectInputStream in = new java.io.ObjectInputStream(new java.io.FileInputStream(_dependencyFile));
+            java.util.HashMap dependencies = (java.util.HashMap)in.readObject();
+            in.close();
+            return dependencies;
+        }
+        catch(java.io.IOException ex)
+        {
+        }
+        catch(java.lang.ClassNotFoundException ex)
+        {
+        }
+
+        return new java.util.HashMap();
+    }
+
+    private void
+    writeDependencies(java.util.HashMap dependencies)
+    {
+        try
+        {
+            java.io.ObjectOutputStream out = new java.io.ObjectOutputStream(new FileOutputStream(_dependencyFile));
+            out.writeObject(dependencies);
+            out.close();
+        }
+        catch(java.io.IOException ex)
+        {
+            throw new BuildException("Unable to write dependencies in file " + _dependencyFile.getPath() + ": " + ex);
+        }
+    }
+
+    //
+    // A proto dependency.
+    //
+    // * the _timeStamp attribute contains the last time the proto
+    //   file was compiled.
+    //
+    // * the _dependency attribute contains the .proto file.
+    //
+    private class ProtoDependency implements java.io.Serializable
+    {
+        private void writeObject(java.io.ObjectOutputStream out)
+            throws java.io.IOException
+        {
+            out.writeObject(_dependency);
+            out.writeLong(_timeStamp);
+        }
+
+        private void readObject(java.io.ObjectInputStream in)
+            throws java.io.IOException, java.lang.ClassNotFoundException
+        {
+            _dependency = (String)in.readObject();
+            _timeStamp = in.readLong();
+        }
+
+        public boolean
+        isUpToDate()
+        {
+            File dep = new File(_dependency);
+            if(!dep.exists() || _timeStamp < dep.lastModified())
+            {
+                return false;
+            }
+
+            return true;
+        }
+
+        public String _dependency;
+        public long _timeStamp;
+    }
+
+    private File _translator;
+    private File _dependencyFile;
+    private File _outputDir;
+    private String _outputDirString;
+    private String _protocPath;
+    private java.util.List<FileSet> _fileSets = new java.util.LinkedList<FileSet>();
+}