org.textmapper.templates.storage.FileBasedResourceLoader Maven / Gradle / Ivy
/**
* Copyright 2002-2016 Evgeny Gryaznov
*
* 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 org.textmapper.templates.storage;
import java.io.*;
public class FileBasedResourceLoader implements IResourceLoader {
private final File[] myFolders;
private final String charsetName;
public FileBasedResourceLoader(File[] folders, String charsetName) {
this.myFolders = folders;
this.charsetName = charsetName;
}
private static String getFileContents(File file, String charsetName) {
StringBuilder contents = new StringBuilder();
char[] buffer = new char[2048];
int count;
try {
Reader in = new InputStreamReader(new FileInputStream(file), charsetName);
try {
while ((count = in.read(buffer)) > 0) {
contents.append(buffer, 0, count);
}
} finally {
in.close();
}
} catch (IOException ioe) {
return null;
}
return contents.toString();
}
@Override
public Resource loadResource(String resourceName, String kind) {
String fileName = resourceName.replace('.', '/') + "." + kind;
for (File f : myFolders) {
File file = new File(f, fileName);
if (file.exists()) {
String contents = getFileContents(file, charsetName);
if (contents != null) {
return new Resource(file.toURI(), contents);
}
}
}
return null;
}
}