/*
* Copyright 2007-2010 the original author or authors.
*
* 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.impalaframework.resolver;
import java.io.File;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.impalaframework.file.ExtensionFileFilter;
import org.impalaframework.util.PathUtils;
import org.impalaframework.util.ResourceUtils;
import org.springframework.core.io.Resource;
/**
* Searches for jar in expanded module directory, under the assumption that the
* module will be found in
*
* workspace_root/module_name/lib_dir
*
* where lib_dir is parameterised
*
* @author Phil Zoio
*/
public abstract class BaseModuleLibraryResourceFinder implements
ModuleResourceFinder {
private static final Log logger = LogFactory.getLog(BaseModuleLibraryResourceFinder.class);
protected abstract String getLibraryDirectory();
public BaseModuleLibraryResourceFinder() {
}
public List<Resource> findResources(String workspaceRootPath, String moduleName, String moduleVersion) {
String libraryPath = getLibraryPath(workspaceRootPath, moduleName);
File internalModulesDirectory = new File(libraryPath);
if (internalModulesDirectory.exists()) {
final File[] listFiles = internalModulesDirectory.listFiles(new ExtensionFileFilter(".jar"));
if (logger.isDebugEnabled()) {
logger.debug("Found internal lib directories for module '" + moduleName + "'");
for (File file : listFiles) {
logger.debug("\t"+file.getAbsolutePath());
}
}
final Resource[] resources = ResourceUtils.getResources(listFiles);
return Arrays.asList(resources);
} else {
logger.debug("Found no internal lib directories for module '" + moduleName + "'");
}
return Collections.emptyList();
}
protected String getLibraryPath(String workspaceRootPath,
String moduleName) {
String path = PathUtils.getPath(workspaceRootPath, moduleName);
path = PathUtils.getPath(path, getLibraryDirectory());
return path;
}
}