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package eu.dnetlib.data.mapreduce.util;
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import org.apache.commons.lang.StringUtils;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.apache.hadoop.io.Text;
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import eu.dnetlib.data.proto.TypeProtos.Type;
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public class OafRowKeyDecoder {
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/**
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* logger.
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*/
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private static final Log log = LogFactory.getLog(OafRowKeyDecoder.class); // NOPMD by marko on 11/24/08 5:02 PM
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private static final String SEPARATOR = "|";
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public final static String ID_REGEX = "^[0-9][0-9]\\|.{12}::[a-zA-Z0-9]{32}$";
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private String key;
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private Type type = null;
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private String id = null;
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public static OafRowKeyDecoder decode(final byte[] key) throws IllegalArgumentException {
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return new OafRowKeyDecoder(new String(key));
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}
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public static OafRowKeyDecoder decode(final String key) throws IllegalArgumentException {
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return new OafRowKeyDecoder(key);
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}
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private OafRowKeyDecoder(final String key) throws IllegalArgumentException {
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this.key = key;
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if (!key.matches(ID_REGEX)) {
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String msg = "invalid key: '" + key + "'";
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log.error(msg);
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throw new IllegalArgumentException(msg);
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}
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int tag = Integer.parseInt(StringUtils.substringBefore(key, SEPARATOR));
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this.type = Type.valueOf(tag);
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this.id = StringUtils.substringAfter(key, SEPARATOR);
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// System.out.println(OafRowTypeDecoder.class.getName() +" decoded key: " + split);
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}
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public String getKey() {
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return key;
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}
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public Text getKeyAsText() {
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return new Text(key);
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}
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public Type getType() {
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return type;
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}
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public String getId() {
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return id;
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}
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}
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