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Struts example source code file (FileResourceStore.java)

This example Struts source code file (FileResourceStore.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 - Struts tags/keywords

exception, file, file, fileinputstream, fileinputstream, fileresourcestore, fileresourcestore, io, ioexception, log, logger, resourcestore, string, string, unable

The Struts FileResourceStore.java source code

/*
 * Copyright 2002-2006,2009 The Apache Software Foundation.
 * 
 * Licensed 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 com.opensymphony.xwork2.util.classloader;

import com.opensymphony.xwork2.util.logging.Logger;
import com.opensymphony.xwork2.util.logging.LoggerFactory;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;


/**
 * Reads a class from disk
 *  class taken from Apache JCI
 */
public final class FileResourceStore implements ResourceStore {
    private static final Logger LOG = LoggerFactory.getLogger(FileResourceStore.class);
    private final File root;

    public FileResourceStore(final File pFile) {
        root = pFile;
    }

    public byte[] read(final String pResourceName) {
        FileInputStream fis = null;
        try {
            File file = getFile(pResourceName);
            byte[] data = new byte[(int) file.length()];
            fis = new FileInputStream(file);
            fis.read(data);

            return data;
        } catch (Exception e) {
            if (LOG.isDebugEnabled())
                LOG.debug("Unable to read file [#0]", e, pResourceName);
            return null;
        } finally {
            closeQuietly(fis);
        }
    }

    public void write(final String pResourceName, final byte[] pData) {

    }

    private void closeQuietly(InputStream is) {
        try {
            if (is != null)
                is.close();
        } catch (IOException e) {
            if (LOG.isErrorEnabled())
                LOG.error("Unable to close file input stream", e);
        }
    }

    private File getFile(final String pResourceName) {
        final String fileName = pResourceName.replace('/', File.separatorChar);
        return new File(root, fileName);
    }

    public String toString() {
        return this.getClass().getName() + root.toString();
    }
}

Other Struts examples (source code examples)

Here is a short list of links related to this Struts FileResourceStore.java source code file:

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