Java WriterFactory.newXmlWriter方法代码示例

import org.codehaus.plexus.util.WriterFactory; //导入方法依赖的package包/类
/**
 * Saves the {@link WebappStructure} to the specified file.
 *
 * @param webappStructure the structure to save
 * @param targetFile the file to use to save the structure
 * @throws IOException if an error occurred while saving the webapp structure
 */
public void toXml( WebappStructure webappStructure, File targetFile )
    throws IOException
{
    // CHECKSTYLE_OFF: LineLength
    Writer writer = null;
    try
    {
        if ( !targetFile.getParentFile().exists() && !targetFile.getParentFile().mkdirs() )
        {
            throw new IOException( "Could not create parent [" + targetFile.getParentFile().getAbsolutePath() + "]" );
        }

        if ( !targetFile.exists() && !targetFile.createNewFile() )
        {
            throw new IOException( "Could not create file [" + targetFile.getAbsolutePath() + "]" );
        }
        writer = WriterFactory.newXmlWriter( targetFile );
        XSTREAM.toXML( webappStructure, writer );
    }
    finally
    {
        IOUtil.close( writer );
    }
    // CHECKSTYLE_ON: LineLength
}
 

import org.codehaus.plexus.util.WriterFactory; //导入方法依赖的package包/类
private void write( File metadataFile, Metadata metadata )
    throws RepositoryException
{
    Writer writer = null;
    try
    {
        metadataFile.getParentFile().mkdirs();
        writer = WriterFactory.newXmlWriter( metadataFile );
        new MetadataXpp3Writer().write( writer, metadata );
    }
    catch ( IOException e )
    {
        throw new RepositoryException( "Could not write metadata " + metadataFile + ": " + e.getMessage(), e );
    }
    finally
    {
        IOUtil.close( writer );
    }
}
 

import org.codehaus.plexus.util.WriterFactory; //导入方法依赖的package包/类
/**
 * Generates a (temporary) POM file from the plugin configuration. It's the responsibility of the caller to delete
 * the generated file when no longer needed.
 *
 * @return The path to the generated POM file, never <code>null</code>.
 * @throws MojoExecutionException If the POM file could not be generated.
 */
private File generatePomFile()
        throws MojoExecutionException
{
    Model model = generateModel();

    Writer writer = null;
    try
    {
        File pomFile = File.createTempFile( "mvninstall", ".pom" );

        writer = WriterFactory.newXmlWriter(pomFile);
        new MavenXpp3Writer().write( writer, model );

        return pomFile;
    }
    catch ( IOException e )
    {
        throw new MojoExecutionException( "Error writing temporary POM file: " + e.getMessage(), e );
    }
    finally
    {
        IOUtil.close(writer);
    }
}
 

import org.codehaus.plexus.util.WriterFactory; //导入方法依赖的package包/类
byte[] getTransformedResource()
    throws IOException
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream( 1024 * 4 );

    Writer writer = WriterFactory.newXmlWriter( baos );
    try
    {
        Xpp3Dom dom = new Xpp3Dom( "component-set" );

        Xpp3Dom componentDom = new Xpp3Dom( "components" );

        dom.addChild( componentDom );

        for ( Xpp3Dom component : components.values() )
        {
            componentDom.addChild( component );
        }

        Xpp3DomWriter.write( writer, dom );

        writer.close();
        writer = null;
    }
    finally
    {
        IOUtil.close( writer );
    }

    return baos.toByteArray();
}
 

import org.codehaus.plexus.util.WriterFactory; //导入方法依赖的package包/类
byte[] getTransformedResource()
    throws IOException
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream( 1024 * 4 );

    Writer writer = WriterFactory.newXmlWriter( baos );
    try
    {
        Xpp3Dom dom = new Xpp3Dom( "plugin" );

        Xpp3Dom componentDom = new Xpp3Dom( "mojos" );

        dom.addChild( componentDom );

        for ( Xpp3Dom mojo : mojos )
        {
            componentDom.addChild( mojo );
        }

        Xpp3DomWriter.write( writer, dom );

        writer.close();
        writer = null;
    }
    finally
    {
        IOUtil.close( writer );
    }

    return baos.toByteArray();
}
 

import org.codehaus.plexus.util.WriterFactory; //导入方法依赖的package包/类
public void doPackaging(PackagingContext context) throws Exception {
	Model model = context.getProject().getOriginalModel();
	model.getDependencies().clear();

	File f = new File(context.getProject().getBasedir(), "target/pom.xml");
	Writer w = WriterFactory.newXmlWriter(f);
	PomWriter.write(w, model);
	context.getProject().setFile(f);
}
 

import org.codehaus.plexus.util.WriterFactory; //导入方法依赖的package包/类
public UpdateResult updateVersion() {
    List<File> changedPoms = new ArrayList<File>();
    List<String> errors = new ArrayList<String>();
    for (ReleasableModule module : reactor.getModulesInBuildOrder()) {
        try {
            MavenProject project = module.getProject();
            if (module.willBeReleased()) {
                log.info("Going to release " + module.getArtifactId() + " " + module.getNewVersion());
            }

            List<String> errorsForCurrentPom = alterModel(project, module.getNewVersion());
            errors.addAll(errorsForCurrentPom);

            File pom = project.getFile().getCanonicalFile();
            changedPoms.add(pom);
            Writer fileWriter = WriterFactory.newXmlWriter(pom);

            Model originalModel = project.getOriginalModel();
            try {
                MavenXpp3Writer pomWriter = new MavenXpp3Writer();
                pomWriter.write(fileWriter, originalModel);
            } finally {
                fileWriter.close();
            }
        } catch (Exception e) {
            return new UpdateResult(changedPoms, errors, e);
        }
    }
    return new UpdateResult(changedPoms, errors, null);
}
 

import org.codehaus.plexus.util.WriterFactory; //导入方法依赖的package包/类
/**
 * Writes a StringBuilder into a file.
 *
 * @param outFile The file to read.
 * @param input The contents of the file.
 * @throws IOException when things go wrong.
 */
protected final void writeFile( File outFile, StringBuilder input )
    throws IOException
{
    Writer writer = WriterFactory.newXmlWriter( outFile );
    try
    {
        IOUtil.copy( input.toString(), writer );
    }
    finally
    {
        IOUtil.close( writer );
    }
}
 

import org.codehaus.plexus.util.WriterFactory; //导入方法依赖的package包/类
byte[] getTransformedResource()
    throws IOException
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream( 1024 * 4 );

    Writer writer = WriterFactory.newXmlWriter( baos );
    try
    {
        Xpp3Dom dom = new Xpp3Dom( "component-set" );

        Xpp3Dom componentDom = new Xpp3Dom( "components" );

        dom.addChild( componentDom );

        for ( Xpp3Dom component : components.values() )
        {
            componentDom.addChild( component );
        }

        Xpp3DomWriter.write( writer, dom );
    }
    finally
    {
        IOUtil.close( writer );
    }

    return baos.toByteArray();
}
 

import org.codehaus.plexus.util.WriterFactory; //导入方法依赖的package包/类
byte[] getTransformedResource()
    throws IOException
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream( 1024 * 4 );

    Writer writer = WriterFactory.newXmlWriter( baos );
    try
    {
        Xpp3Dom dom = new Xpp3Dom( "plugin" );

        Xpp3Dom componentDom = new Xpp3Dom( "mojos" );

        dom.addChild( componentDom );

        for ( Xpp3Dom mojo : mojos )
        {
            componentDom.addChild( mojo );
        }

        Xpp3DomWriter.write( writer, dom );
    }
    finally
    {
        IOUtil.close( writer );
    }

    return baos.toByteArray();
}
 

import org.codehaus.plexus.util.WriterFactory; //导入方法依赖的package包/类
/**
 * Writes a StringBuilder into a file.
 *
 * @param outFile The file to read.
 * @param input   The contents of the file.
 * @throws IOException when things go wrong.
 */
protected final void writeFile( File outFile, StringBuilder input )
    throws IOException
{
    Writer writer = WriterFactory.newXmlWriter( outFile );
    try
    {
        IOUtil.copy( input.toString(), writer );
    }
    finally
    {
        IOUtil.close( writer );
    }
}
 

import org.codehaus.plexus.util.WriterFactory; //导入方法依赖的package包/类
protected Writer initializeWriter(final File destinationFile) throws
    MojoExecutionException {
  try {
    return WriterFactory.newXmlWriter(destinationFile);
  } catch (IOException e) {
    throw new MojoExecutionException("Exception while opening file[" +
        destinationFile.getAbsolutePath() + "]", e);
  }
}
 

import org.codehaus.plexus.util.WriterFactory; //导入方法依赖的package包/类
/**
 * Generates an Oozie workflow to execute the job in the given schedule.
 *
 * @param schedule the schedule to write
 * @param context the application's context
 * @param output an output stream to which the workflow is written
 */
public static void writeWorkFlow(Schedule schedule,
                                 AppContext context,
                                 OutputStream output) throws IOException {

  XmlStreamWriter streamWriter = WriterFactory.newXmlWriter(output);

  PrettyPrintXMLWriter writer = new PrettyPrintXMLWriter(streamWriter);

  writer.startElement(WORKFLOW_ELEMENT);
  writer.addAttribute("name", schedule.getName());
  writer.addAttribute("xmlns", OOZIE_WORKFLOW_NS);

  element(writer, "start", "to", schedule.getName());

  writer.startElement("action");
  writer.addAttribute("name", schedule.getName());

  // Reduce retry attempts. TODO: make this configurable?
  writer.addAttribute("retry-max", "2");
  writer.addAttribute("retry-interval", "1");

  // Write the appropriate action to be used in the job.
  SchedulableJobManager manager = JobManagers.createSchedulable(schedule, context);
  manager.writeOozieActionBlock(writer, schedule);

  element(writer, "ok", "to", "end");

  element(writer, "error", "to", "kill");

  writer.endElement(); // action

  writer.startElement("kill");
  writer.addAttribute("name", "kill");
  element(writer, "message", "Error in workflow for " + schedule.getName());
  writer.endElement(); // kill

  element(writer, "end", "name", "end");

  writer.endElement(); // workflow
  streamWriter.flush();
}
 

import org.codehaus.plexus.util.WriterFactory; //导入方法依赖的package包/类
public static void writeBundle(Class appClass,
                                 AppContext context,
                                 Path appPath,
                                 List<Schedule> schedules,
                                 OutputStream output) throws IOException {

    Configuration conf = context.getHadoopConf();

    XmlStreamWriter streamWriter = WriterFactory.newXmlWriter(output);

    PrettyPrintXMLWriter writer = new PrettyPrintXMLWriter(streamWriter);

    writer.startElement(BUNDLE_ELEMENT);
    writer.addAttribute("name", appClass.getCanonicalName());
    writer.addAttribute("xmlns", OOZIE_BUNDLE_NS);

    writer.startElement("parameters");

    // Default to the HDFS scheme for the root path if none is provided.
    Path qualifiedPath = appPath.toUri().getScheme() == null ?
        appPath.makeQualified(URI.create("hdfs:/"), appPath) :
        appPath;

    property(writer, "kiteAppRoot", qualifiedPath.toString());

    property(writer, "oozie.libpath", "${kiteAppRoot}/lib");
    property(writer, "nameNode", conf.get("fs.default.name"));

    String resourceManager = conf.get("yarn.resourcemanager.address");

    // MR2 uses YARN for the job tracker, but some Hadoop deployments
    // don't have the resoure manager setting visible. We work around this
    // by grabbing the job tracker setting and swapping to the resource
    // manager port.
    // TODO: is there a better way to deal with this?
    if (resourceManager == null) {

      String jobTracker = conf.get("mapred.job.tracker");

      if (jobTracker != null)
        resourceManager = jobTracker.replace("8021", "8032");
    }

    if (resourceManager != null)
      property(writer, "jobTracker", resourceManager);

    // TODO: handle application configuration.
//    if (appConfigPath != null)
//     property(writer, "appConfigPath", appConfigPath.toString());
    writer.endElement(); // parameters

    int i = 0;

    for (Schedule schedule: schedules) {
      writer.startElement("coordinator");
      writer.addAttribute("name", schedule.getName());

      element(writer, "app-path", "${kiteAppRoot}/" + coordPath(schedule));
      writer.endElement(); // coordinator
    }

    writer.endElement(); // bundle
    streamWriter.flush();
  }
 

import org.codehaus.plexus.util.WriterFactory; //导入方法依赖的package包/类
/**
 * Ensures the last updated timestamp of the specified metadata does not refer to the future and fixes the local metadata if necessary to allow
 * proper merging/updating of metadata during deployment.
 */
private void fixTimestamp( File metadataFile, Metadata metadata, Metadata reference )
{
    boolean changed = false;

    if ( metadata != null && reference != null )
    {
        Versioning versioning = metadata.getVersioning();
        Versioning versioningRef = reference.getVersioning();
        if ( versioning != null && versioningRef != null )
        {
            String lastUpdated = versioning.getLastUpdated();
            String now = versioningRef.getLastUpdated();
            if ( lastUpdated != null && now != null && now.compareTo( lastUpdated ) < 0 )
            {
                getLogger().warn(
                                  "The last updated timestamp in " + metadataFile + " refers to the future (now = "
                                      + now + ", lastUpdated = " + lastUpdated
                                      + "). Please verify that the clocks of all"
                                      + " deploying machines are reasonably synchronized." );
                versioning.setLastUpdated( now );
                changed = true;
            }
        }
    }

    if ( changed )
    {
        getLogger().debug( "Repairing metadata in " + metadataFile );

        Writer writer = null;
        try
        {
            writer = WriterFactory.newXmlWriter( metadataFile );
            new MetadataXpp3Writer().write( writer, metadata );
        }
        catch ( IOException e )
        {
            String msg = "Could not write fixed metadata to " + metadataFile + ": " + e.getMessage();
            if ( getLogger().isDebugEnabled() )
            {
                getLogger().warn( msg, e );
            }
            else
            {
                getLogger().warn( msg );
            }
        }
        finally
        {
            IOUtil.close( writer );
        }
    }
}