001/*
002 * (C) Copyright 2006-2008 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     bstefanescu
018 */
019package org.nuxeo.ecm.webengine.loader.store;
020
021import java.io.File;
022import java.io.FileInputStream;
023import java.io.IOException;
024import java.io.InputStream;
025import java.net.URL;
026
027import org.apache.commons.logging.Log;
028import org.apache.commons.logging.LogFactory;
029import org.nuxeo.common.utils.FileUtils;
030
031/**
032 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
033 */
034public class FileResourceStore implements ResourceStore {
035
036    private static final Log log = LogFactory.getLog(FileResourceStore.class);
037
038    protected File root;
039
040    public FileResourceStore(File root) throws IOException {
041        this.root = root.getCanonicalFile();
042    }
043
044    public File getRoot() {
045        return root;
046    }
047
048    public final File getFile(String name) {
049        return new File(root, name);
050    }
051
052    public boolean exists(String name) {
053        return getFile(name).exists();
054    }
055
056    public long lastModified(String name) {
057        return getFile(name).lastModified();
058    }
059
060    public URL getURL(String name) {
061        try {
062            File file = getFile(name);
063            if (file.exists()) {
064                return file.toURI().toURL();
065            }
066        } catch (IOException e) {
067            log.error("Failed to transform file to URL: " + name, e);
068        }
069        return null;
070    }
071
072    public byte[] getBytes(String name) {
073        InputStream in = getStream(name);
074        if (in != null) {
075            try {
076                return FileUtils.readBytes(in);
077            } catch (IOException e) {
078                log.error("Failed to read file: " + name, e);
079            }
080        }
081        return null;
082    }
083
084    public InputStream getStream(String name) {
085        try {
086            return new FileInputStream(getFile(name));
087        } catch (IOException e) {
088        }
089        return null;
090    }
091
092    public void remove(String name) {
093        getFile(name).delete();
094    }
095
096    public void put(String name, byte[] data) throws IOException {
097        FileUtils.writeFile(getFile(name), data);
098    }
099
100    public void put(String name, InputStream data) throws IOException {
101        FileUtils.copyToFile(data, getFile(name));
102    }
103
104    public String getLocation() {
105        return root.toString();
106    }
107
108    @Override
109    public boolean equals(Object obj) {
110        if (this == obj) {
111            return true;
112        }
113        if (obj instanceof FileResourceStore) {
114            FileResourceStore store = (FileResourceStore) obj;
115            return store.root.equals(root);
116        }
117        return false;
118    }
119
120    @Override
121    public int hashCode() {
122        return root.hashCode();
123    }
124
125    @Override
126    public String toString() {
127        return "FileResourceStore: " + root;
128    }
129
130}