Apache CXF example source code file (FileWriterUtil.java)

This example Apache CXF source code file (FileWriterUtil.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Apache CXF tags/keywords

bufferedoutputstream, file, file, fileoutputstream, filewriterutil, io, ioexception, ioexception, log, log, logging, string, string, toolexception, utf-8, writer, writer

The Apache CXF FileWriterUtil.java source code

/**
 * 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.cxf.tools.util;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.logging.Logger;

import org.apache.cxf.common.i18n.Message;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.tools.common.ToolException;

public class FileWriterUtil {
    private static final Logger LOG = LogUtils.getL7dLogger(FileWriterUtil.class);
    private final File target;

    public FileWriterUtil(String targetDir) throws ToolException {
        target = new File(targetDir);
        if (!(target.exists()) || !(target.isDirectory())) {
            Message msg = new Message("DIRECTORY_NOT_EXIST", LOG, target);
            throw new ToolException(msg);
        }
    }

    public File getFileToWrite(String packageName, String fileName) throws IOException {
        File dir = buildDir(packageName);
        File fn = new File(dir, fileName);
        if (fn.exists() && !fn.delete()) {
            throw new IOException(fn + ": Can't delete previous version");
        }
        return fn;
    }

    public static Writer getWriter(File fn) throws IOException {
        return new OutputStreamWriter(new BufferedOutputStream(new FileOutputStream(fn)), "UTF-8");
    }

    public static Writer getWriter(File fn, String encoding) throws IOException {
        if (encoding == null) {
            encoding = "UTF-8";
        }
        return new OutputStreamWriter(new BufferedOutputStream(new FileOutputStream(fn)), encoding);
    }
    
    public Writer getWriter(String packageName, String fileName) throws IOException {
        return getWriter(getFileToWrite(packageName, fileName));
    }

    public boolean isCollision(String packageName, String fileName) throws ToolException {
        File dir = buildDir(packageName);
        return fileExist(dir, fileName);
    }

    public File buildDir(String packageName) {
        File dir;
        if (packageName == null) {
            dir = target;
        } else {
            dir = new File(target, toDir(packageName));
        }
        if (!dir.exists()) {
            dir.mkdirs();
        }
        return dir;
    }

    private boolean fileExist(File dir, String fileName) {
        return new File(dir, fileName).exists();
    }

    private String toDir(String packageName) {
        return packageName.replace('.', File.separatorChar);
    }

}