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/*
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 *   Copyright 2010 Brian Rosenberger (Brutex Network)
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 *
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 *   Licensed under the Apache License, Version 2.0 (the "License");
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 *   you may not use this file except in compliance with the License.
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 *   You may obtain a copy of the License at
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 *
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 *       http://www.apache.org/licenses/LICENSE-2.0
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 *
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 *   Unless required by applicable law or agreed to in writing, software
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 *   distributed under the License is distributed on an "AS IS" BASIS,
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 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 *   See the License for the specific language governing permissions and
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 *   limitations under the License.
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 */
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package net.brutex.xservices.ws.impl;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.UnsupportedEncodingException;
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import java.util.List;
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import javax.activation.DataHandler;
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import javax.jws.WebMethod;
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import javax.jws.WebParam;
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import javax.jws.WebService;
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import net.brutex.xservices.types.AntProperty;
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import net.brutex.xservices.types.ArchiveResource;
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import net.brutex.xservices.types.AttachmentType;
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import net.brutex.xservices.types.FileResource;
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import net.brutex.xservices.types.FileSetResource;
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import net.brutex.xservices.types.ResourceInterface;
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import net.brutex.xservices.types.ReturnCode;
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import net.brutex.xservices.util.BrutexNamespaces;
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import net.brutex.xservices.util.RunTask;
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import net.brutex.xservices.ws.FileService;
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import net.brutex.xservices.ws.XServicesFault;
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import org.apache.commons.codec.binary.Base64;
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import org.apache.commons.codec.binary.Base64InputStream;
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import org.apache.cxf.aegis.type.mtom.StreamDataSource;
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import org.apache.tools.ant.BuildException;
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import org.apache.tools.ant.taskdefs.Basename;
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import org.apache.tools.ant.taskdefs.Chmod;
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import org.apache.tools.ant.taskdefs.Copy;
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import org.apache.tools.ant.taskdefs.Echo;
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import org.apache.tools.ant.taskdefs.LoadResource;
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import org.apache.tools.ant.taskdefs.optional.unix.Chgrp;
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import org.apache.tools.ant.taskdefs.optional.unix.Chown;
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import org.apache.tools.ant.types.FileSet;
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/**
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 *
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 * @author Brian Rosenberger, bru@brutex.de
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 */
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@WebService(targetNamespace = BrutexNamespaces.WS_XSERVICES, endpointInterface = "net.brutex.xservices.ws.FileService", serviceName = "FileService")
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public class FileServiceImpl implements FileService {
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see net.brutex.xservices.ws.impl.FileService#basename(java.lang.String,
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	 * java.lang.String)
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	 */
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	@Override
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	@WebMethod(operationName = "basename")
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	public ReturnCode basename(@WebParam(name = "file") String filename,
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			@WebParam(name = "suffix") String suffix) {
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		return basename(new File(filename), suffix);
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	}
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see
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	 * net.brutex.xservices.ws.impl.FileService#base64Encode(net.brutex.xservices
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	 * .types.FileSetResource)
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	 */
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	@Override
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	@WebMethod(operationName = "downloadFile")
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	public AttachmentType downloadFile(@WebParam(name = "file") FileResource res) {
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		InputStream is = null;
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		try {
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			is = res.getAntResource(null).getInputStream();
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		} catch (IOException e) {
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			// TODO Auto-generated catch block
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			e.printStackTrace();
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		}
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		DataHandler h = new DataHandler(new StreamDataSource(
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				"application/binary", is));
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		AttachmentType t = new AttachmentType();
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		t.setContent(h);
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		return t;
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	}
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see
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	 * net.brutex.xservices.ws.impl.FileService#base64Decode(net.brutex.xservices
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	 * .types.AttachmentType)
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	 */
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	@Override
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	@WebMethod(operationName = "uploadFile")
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	public String uploadFile(@WebParam(name = "file") AttachmentType file) {
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		DataHandler h =  file.getContent();
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		File f = new File(file.getFilename());
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		FileOutputStream fout;
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		try {
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			fout = new FileOutputStream(f);
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			/*
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			 * InputStream in = h.getInputStream();
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			int b;
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			while( (b=in.read())!= -1 ) {
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				fout.write(b);
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			}
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			*/
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			h.writeTo(fout);
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			fout.flush();
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			fout.close();
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			//in.close();
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		} catch (FileNotFoundException e) {
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			throw new BuildException(e);
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		} catch (IOException e) {
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			throw new BuildException(e);
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		}
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		return file.getFilename();
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	}
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see
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	 * net.brutex.xservices.ws.impl.FileService#copy(net.brutex.xservices.types
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	 * .FileSetResource, java.lang.String, boolean, boolean, java.lang.String)
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	 */
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	@Override
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	@WebMethod(operationName = "copy")
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	public ReturnCode copy(@WebParam(name = "fileset") FileSetResource src,
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			@WebParam(name = "todir") String todir,
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			@WebParam(name = "preservelastmodified") boolean plm,
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			@WebParam(name = "overwrite") boolean overwrite,
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			@WebParam(name = "encoding") String encoding) throws XServicesFault {
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		return copy(src, new File(todir), plm, overwrite, encoding);
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	}
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see
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	 * net.brutex.xservices.ws.impl.FileService#loadRes(net.brutex.xservices
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	 * .types.FileResource, java.lang.String)
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	 */
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	@Override
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	@WebMethod(operationName = "loadResource")
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	public ReturnCode loadRes(@WebParam(name = "resource") FileResource res,
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			@WebParam(name = "encoding") String encoding) {
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		if (encoding == null || encoding.equals("")) {
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			encoding = System.getProperty("file.encoding");
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		}
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		return loadResource(res, encoding);
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	}
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see
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	 * net.brutex.xservices.ws.impl.FileService#loadResFromArchive(net.brutex
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	 * .xservices.types.ArchiveResource, java.lang.String)
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	 */
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	@Override
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	@WebMethod(operationName = "loadResourceFromArchive")
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	public ReturnCode loadResFromArchive(
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			@WebParam(name = "archiveresource") ArchiveResource res,
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			@WebParam(name = "encoding") String encoding) {
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		if (encoding == null || encoding.equals("")) {
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			encoding = System.getProperty("file.encoding");
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		}
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		return loadResource(res, encoding);
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	}
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see net.brutex.xservices.ws.impl.FileService#echo2file(java.lang.String,
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	 * java.lang.String, java.lang.String, boolean)
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	 */
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	@Override
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	@WebMethod(operationName = "echoToFile")
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	public ReturnCode echo2file(@WebParam(name = "message") String message,
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			@WebParam(name = "file") String file,
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			@WebParam(name = "encoding") String encoding,
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			@WebParam(name = "append") boolean append) {
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		return echo(message, new File(file), encoding, append);
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	}
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see
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	 * net.brutex.xservices.ws.impl.FileService#changeOwner(net.brutex.xservices
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	 * .types.FileSetResource, java.lang.String)
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	 */
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	@Override
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	@WebMethod(operationName = "changeOwner")
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	public ReturnCode changeOwner(
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			@WebParam(name = "fileset") FileSetResource res,
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			@WebParam(name = "owner") String owner) {
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		return chown(res, owner);
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	}
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see
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	 * net.brutex.xservices.ws.impl.FileService#changeGroup(net.brutex.xservices
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	 * .types.FileSetResource, java.lang.String)
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	 */
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	@Override
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	@WebMethod(operationName = "changeGroup")
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	public ReturnCode changeGroup(
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			@WebParam(name = "fileset") FileSetResource res,
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			@WebParam(name = "group") String group) {
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		return chgrp(res, group);
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	}
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see
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	 * net.brutex.xservices.ws.impl.FileService#changeMode(net.brutex.xservices
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	 * .types.FileSetResource, java.lang.String)
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	 */
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	@Override
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	@WebMethod(operationName = "changeMode")
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	public ReturnCode changeMode(
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			@WebParam(name = "fileset") FileSetResource res,
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			@WebParam(name = "permissions") String perm) {
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		return chmod(res, perm);
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	}
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	@WebMethod(exclude = true)
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	private ReturnCode basename(File file, String suffix) {
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		Basename basename = new Basename();
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		RunTask runner = new RunTask(basename);
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		basename.setFile(file);
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		if (suffix != null && !suffix.equals("")) {
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			basename.setSuffix(suffix);
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		}
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		basename.setProperty("basename.value");
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		return runner.postTask();
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	}
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	@WebMethod(exclude = true)
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	private ReturnCode loadResource(ResourceInterface src, String encoding) {
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		LoadResource lr = new LoadResource();
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		lr.setTaskName("LoadResource");
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		RunTask runner = new RunTask(lr);
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		lr.addConfigured(src.getAntResource(lr.getProject()));
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		lr.setEncoding(encoding);
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		System.out.println("Using encoding: " + encoding);
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		lr.setProperty("LoadResource.out");
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		return runner.postTask();
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	}
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	@WebMethod(exclude = true)
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	private ReturnCode echo(String msg, File file, String encoding,
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			boolean append) {
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		Echo echo = new Echo();
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		echo.setTaskName("toFile");
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		RunTask runTask = new RunTask(echo);
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		echo.addText(msg);
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		echo.setEncoding(encoding);
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		echo.setFile(file);
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		echo.setAppend(append);
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		return runTask.postTask();
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	}
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	@WebMethod(exclude = true)
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	private ReturnCode copy(FileSetResource src, File dst,
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			boolean preservelastmodified, boolean overwrite, String encoding) {
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		Copy copy = new Copy();
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		copy.setTaskName("Copy");
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		RunTask runner = new RunTask(copy);
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		FileSet set = src.getAntResource(copy.getProject());
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		copy.add(set);
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		if (dst.isDirectory()) {
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			copy.setTodir(dst);
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		}
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		if (dst.isFile()) {
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			copy.setTofile(dst);
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		}
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		copy.setOverwrite(overwrite);
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		copy.setPreserveLastModified(preservelastmodified);
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		if (encoding != null && !encoding.equals("")) {
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			copy.setOutputEncoding(encoding);
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		} else {
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			copy.setOutputEncoding(System.getProperty("file.encoding"));
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		}
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		return runner.postTask();
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	}
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	@WebMethod(exclude = true)
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	private ReturnCode chown(FileSetResource src, String owner) {
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		Chown chown = new Chown();
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		chown.setTaskName("Chown");
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		RunTask runner = new RunTask(chown);
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		chown.setOwner(owner);
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		FileSet set = src.getAntResource(chown.getProject());
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		chown.add(set);
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		chown.setMaxParallel(300);
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		return runner.postTask();
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	}
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	@WebMethod(exclude = true)
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	private ReturnCode chgrp(FileSetResource src, String group) {
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		Chgrp chgrp = new Chgrp();
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		chgrp.setTaskName("Chgrp");
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		RunTask runner = new RunTask(chgrp);
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		chgrp.setGroup(group);
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		FileSet set = src.getAntResource(chgrp.getProject());
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		chgrp.add(set);
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		chgrp.setMaxParallel(300);
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		return runner.postTask();
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	}
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	@WebMethod(exclude = true)
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	private ReturnCode chmod(FileSetResource src, String perm) {
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		Chmod chmod = new Chmod();
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		chmod.setTaskName("Chmod");
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		RunTask runner = new RunTask(chmod);
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		FileSet set = src.getAntResource(chmod.getProject());
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		chmod.add(set);
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		chmod.setMaxParallel(300);
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		chmod.setPerm(perm);
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		chmod.setVerbose(true);
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		return runner.postTask();
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	}
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}