/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.tools.ant.taskdefs;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import org.apache.tools.ant.BuildEvent;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.BuildLogger;
import org.apache.tools.ant.DefaultLogger;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.SubBuildListener;
import org.apache.tools.ant.util.StringUtils;
/**
* This is a class that represents a recorder. This is the listener to the
* build process.
*
* @since Ant 1.4
*/
public class RecorderEntry implements BuildLogger, SubBuildListener {
//////////////////////////////////////////////////////////////////////
// ATTRIBUTES
/** The name of the file associated with this recorder entry. */
private String filename = null;
/** The state of the recorder (recorder on or off). */
private boolean record = true;
/** The current verbosity level to record at. */
private int loglevel = Project.MSG_INFO;
/** The output PrintStream to record to. */
private PrintStream out = null;
/** The start time of the last know target. */
private long targetStartTime = 0L;
/** Strip task banners if true. */
private boolean emacsMode = false;
/** project instance the recorder is associated with */
private Project project;
//////////////////////////////////////////////////////////////////////
// CONSTRUCTORS / INITIALIZERS
/**
* @param name The name of this recorder (used as the filename).
*/
protected RecorderEntry(String name) {
targetStartTime = System.currentTimeMillis();
filename = name;
}
//////////////////////////////////////////////////////////////////////
// ACCESSOR METHODS
/**
* @return the name of the file the output is sent to.
*/
public String getFilename() {
return filename;
}
/**
* Turns off or on this recorder.
*
* @param state true for on, false for off, null for no change.
*/
public void setRecordState(Boolean state) {
if (state != null) {
flush();
record = state.booleanValue();
}
}
/**
* @see org.apache.tools.ant.BuildListener#buildStarted(BuildEvent)
*/
/** {@inheritDoc}. */
public void buildStarted(BuildEvent event) {
log("> BUILD STARTED", Project.MSG_DEBUG);
}
/**
* @see org.apache.tools.ant.BuildListener#buildFinished(BuildEvent)
*/
/** {@inheritDoc}. */
public void buildFinished(BuildEvent event) {
log("< BUILD FINISHED", Project.MSG_DEBUG);
if (record && out != null) {
Throwable error = event.getException();
if (error == null) {
out.println(StringUtils.LINE_SEP + "BUILD SUCCESSFUL");
} else {
out.println(StringUtils.LINE_SEP + "BUILD FAILED"
+ StringUtils.LINE_SEP);
error.printStackTrace(out);
}
}
cleanup();
}
/**
* Cleans up any resources held by this recorder entry at the end
* of a subbuild if it has been created for the subbuild's project
* instance.
*
* @param event the buildFinished event
*
* @since Ant 1.6.2
*/
public void subBuildFinished(BuildEvent event) {
if (event.getProject() == project) {
cleanup();
}
}
/**
* Empty implementation to satisfy the BuildListener interface.
*
* @param event the buildStarted event
*
* @since Ant 1.6.2
*/
public void subBuildStarted(BuildEvent event) {
}
/**
* @see org.apache.tools.ant.BuildListener#targetStarted(BuildEvent)
*/
/** {@inheritDoc}. */
public void targetStarted(BuildEvent event) {
log(">> TARGET STARTED -- " + event.getTarget(), Project.MSG_DEBUG);
log(StringUtils.LINE_SEP + event.getTarget().getName() + ":",
Project.MSG_INFO);
targetStartTime = System.currentTimeMillis();
}
/**
* @see org.apache.tools.ant.BuildListener#targetFinished(BuildEvent)
*/
/** {@inheritDoc}. */
public void targetFinished(BuildEvent event) {
log("<< TARGET FINISHED -- " + event.getTarget(), Project.MSG_DEBUG);
String time = formatTime(System.currentTimeMillis() - targetStartTime);
log(event.getTarget() + ": duration " + time, Project.MSG_VERBOSE);
flush();
}
/**
* @see org.apache.tools.ant.BuildListener#taskStarted(BuildEvent)
*/
/** {@inheritDoc}. */
public void taskStarted(BuildEvent event) {
log(">>> TASK STARTED -- " + event.getTask(), Project.MSG_DEBUG);
}
/**
* @see org.apache.tools.ant.BuildListener#taskFinished(BuildEvent)
*/
/** {@inheritDoc}. */
public void taskFinished(BuildEvent event) {
log("<<< TASK FINISHED -- " + event.getTask(), Project.MSG_DEBUG);
flush();
}
/**
* @see org.apache.tools.ant.BuildListener#messageLogged(BuildEvent)
*/
/** {@inheritDoc}. */
public void messageLogged(BuildEvent event) {
log("--- MESSAGE LOGGED", Project.MSG_DEBUG);
StringBuffer buf = new StringBuffer();
if (event.getTask() != null) {
String name = event.getTask().getTaskName();
if (!emacsMode) {
String label = "[" + name + "] ";
int size = DefaultLogger.LEFT_COLUMN_SIZE - label.length();
for (int i = 0; i < size; i++) {
buf.append(" ");
}
buf.append(label);
}
}
buf.append(event.getMessage());
log(buf.toString(), event.getPriority());
}
/**
* The thing that actually sends the information to the output.
*
* @param mesg The message to log.
* @param level The verbosity level of the message.
*/
private void log(String mesg, int level) {
if (record && (level <= loglevel) && out != null) {
out.println(mesg);
}
}
private void flush() {
if (record && out != null) {
out.flush();
}
}
/**
* @see BuildLogger#setMessageOutputLevel(int)
*/
/** {@inheritDoc}. */
public void setMessageOutputLevel(int level) {
if (level >= Project.MSG_ERR && level <= Project.MSG_DEBUG) {
loglevel = level;
}
}
/**
* @see BuildLogger#setOutputPrintStream(PrintStream)
*/
/** {@inheritDoc}. */
public void setOutputPrintStream(PrintStream output) {
closeFile();
out = output;
}
/**
* @see BuildLogger#setEmacsMode(boolean)
*/
/** {@inheritDoc}. */
public void setEmacsMode(boolean emacsMode) {
this.emacsMode = emacsMode;
}
/**
* @see BuildLogger#setErrorPrintStream(PrintStream)
*/
/** {@inheritDoc}. */
public void setErrorPrintStream(PrintStream err) {
setOutputPrintStream(err);
}
private static String formatTime(long millis) {
long seconds = millis / 1000;
long minutes = seconds / 60;
if (minutes > 0) {
return Long.toString(minutes) + " minute"
+ (minutes == 1 ? " " : "s ")
+ Long.toString(seconds % 60) + " second"
+ (seconds % 60 == 1 ? "" : "s");
} else {
return Long.toString(seconds) + " second"
+ (seconds % 60 == 1 ? "" : "s");
}
}
/**
* Set the project associated with this recorder entry.
*
* @param project the project instance
*
* @since 1.6.2
*/
public void setProject(Project project) {
this.project = project;
if (project != null) {
project.addBuildListener(this);
}
}
/**
* @since 1.6.2
*/
public void cleanup() {
closeFile();
if (project != null) {
project.removeBuildListener(this);
}
project = null;
}
/**
* Initially opens the file associated with this recorder.
* Used by Recorder.
* @param append Indicates if output must be appended to the logfile or that
* the logfile should be overwritten.
* @throws BuildException
* @since 1.6.3
*/
void openFile(boolean append) throws BuildException {
openFileImpl(append);
}
/**
* Closes the file associated with this recorder.
* Used by Recorder.
* @since 1.6.3
*/
void closeFile() {
if (out != null) {
out.close();
out = null;
}
}
/**
* Re-opens the file associated with this recorder.
* Used by Recorder.
* @throws BuildException
* @since 1.6.3
*/
void reopenFile() throws BuildException {
openFileImpl(true);
}
private void openFileImpl(boolean append) throws BuildException {
if (out == null) {
try {
out = new PrintStream(new FileOutputStream(filename, append));
} catch (IOException ioe) {
throw new BuildException("Problems opening file using a "
+ "recorder entry", ioe);
}
}
}
}
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