/*
* 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.oodt.cas.crawl;
//OODT imports
import org.apache.oodt.cas.metadata.Metadata;
import org.apache.oodt.cas.metadata.extractors.MetReaderExtractor;
//JDK imports
import java.io.File;
import java.util.logging.Level;
/**
* A generic Product Crawler for Products. The Crawler is given a root Product
* Path and it searches through all directories and sub-directories for .met
* files, which it uses to determine products to ingest into the file manger.
* The important .met file fields that this crawler requires are:
*
* <ul>
* <li><code>FileLocation</code>: directory absolute path to location of product
* file</li>
* <li><code>Filename</code>: name of the product file to ingest</li>
* <li><code>ProductType</code>: the ProductType that will be sent to the file
* manager for the product file described by the .met file.</li>
* </ul>
*
* @author mattmann (Chris Mattmann)
* @author bfoster (Brian Foster)
*/
public class StdProductCrawler extends ProductCrawler {
String metFileExtension;
public StdProductCrawler() {
this.metFileExtension = "met";
}
@Override
protected Metadata getMetadataForProduct(File product) throws Exception {
MetReaderExtractor extractor = new MetReaderExtractor(
this.metFileExtension);
return extractor.extractMetadata(product);
}
@Override
protected boolean passesPreconditions(File product) {
return new File(product.getAbsolutePath() + "." + this.metFileExtension)
.exists();
}
@Override
protected File renameProduct(File product, Metadata productMetadata) {
return product;
}
public void setMetFileExtension(String metFileExtension) {
this.metFileExtension = metFileExtension;
}
}