/*
* 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.filemgr.metadata.extractors;
//OODT imports
import org.apache.oodt.cas.filemgr.metadata.CoreMetKeys;
import org.apache.oodt.cas.filemgr.structs.Product;
import org.apache.oodt.cas.metadata.Metadata;
import org.apache.oodt.cas.metadata.exceptions.MetExtractionException;
import org.apache.oodt.commons.util.DateConvert;
//JDK imports
import java.io.File;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
/**
* @author mattmann
* @author bfoster
* @version $Revision$
*
* <p>
* The core {@link FilemgrMetExtractor} providing the {@link CoreMetKeys}
* for this {@link Product}.
* </p>.
*/
public class CoreMetExtractor extends AbstractFilemgrMetExtractor implements
CoreMetKeys {
private boolean namespaceAware = false;
private String elementNs;
private static final String nsSeparator = ".";
private List<String> nsReplaceElements;
public CoreMetExtractor() {
}
/*
* (non-Javadoc)
*
* @see org.apache.oodt.cas.filemgr.metadata.extractors.
* AbstractFilemgrMetExtractor#doExtract(org.apache.oodt.cas.filemgr.structs.Product,
* org.apache.oodt.cas.metadata.Metadata)
*/
public Metadata doExtract(Product product, Metadata met)
throws MetExtractionException {
Metadata extractMet = new Metadata();
/* copy through original metadata */
merge(met, extractMet);
File prodFile = getProductFile(product);
extractMet
.addMetadata(isNsReplace(PRODUCT_ID) ? elementNs + nsSeparator
+ PRODUCT_ID : PRODUCT_ID, product.getProductId());
addMetadataIfUndefined(met, extractMet,
isNsReplace(FILENAME) ? elementNs + nsSeparator + FILENAME
: FILENAME, prodFile.getName());
addMetadataIfUndefined(met, extractMet,
isNsReplace(FILE_LOCATION) ? elementNs + nsSeparator
+ FILE_LOCATION : FILE_LOCATION, prodFile
.getParentFile().getAbsolutePath());
addMetadataIfUndefined(met, extractMet,
isNsReplace(PRODUCT_NAME) ? elementNs + nsSeparator
+ PRODUCT_NAME : PRODUCT_NAME, product.getProductName());
addMetadataIfUndefined(met, extractMet,
isNsReplace(PRODUCT_STRUCTURE) ? elementNs + nsSeparator
+ PRODUCT_STRUCTURE : PRODUCT_STRUCTURE, product
.getProductStructure());
extractMet.addMetadata(isNsReplace(PRODUCT_RECEVIED_TIME) ? elementNs
+ nsSeparator + PRODUCT_RECEVIED_TIME : PRODUCT_RECEVIED_TIME,
DateConvert.isoFormat(new Date()));
addMetadataIfUndefined(met, extractMet,
isNsReplace(PRODUCT_TYPE) ? elementNs + nsSeparator
+ PRODUCT_TYPE : PRODUCT_TYPE, product.getProductType()
.getName());
return extractMet;
}
/*
* (non-Javadoc)
*
* @see org.apache.oodt.cas.filemgr.metadata.extractors.AbstractFilemgrMetExtractor#doConfigure()
*/
public void doConfigure() {
if (this.configuration != null) {
namespaceAware = Boolean.valueOf(
this.configuration.getProperty("nsAware")).booleanValue();
if (namespaceAware) {
elementNs = this.configuration.getProperty("elementNs");
String replaceElemStr = this.configuration
.getProperty("elements");
nsReplaceElements = Arrays.asList(replaceElemStr.split(","));
}
}
}
private boolean isNsReplace(String elemName) {
if (this.nsReplaceElements == null
|| (this.nsReplaceElements != null && this.nsReplaceElements
.size() == 0)) {
return false;
}
return namespaceAware && this.nsReplaceElements.contains(elemName);
}
}