franta-hg@15: /**
franta-hg@15:  * Free Telco Dictionary
franta-hg@15:  * Copyright © 2013 František Kučera (frantovo.cz)
franta-hg@15:  *
franta-hg@15:  * This program is free software: you can redistribute it and/or modify
franta-hg@15:  * it under the terms of the GNU General Public License as published by
franta-hg@151:  * the Free Software Foundation, version 3 of the License.
franta-hg@15:  *
franta-hg@15:  * This program is distributed in the hope that it will be useful,
franta-hg@15:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
franta-hg@15:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
franta-hg@15:  * GNU General Public License for more details.
franta-hg@15:  *
franta-hg@15:  * You should have received a copy of the GNU General Public License
franta-hg@15:  * along with this program. If not, see <http://www.gnu.org/licenses/>.
franta-hg@15:  */
franta-hg@15: package cz.frantovo.telco.dictionary;
franta-hg@15: 
franta-hg@17: import java.io.DataOutputStream;
franta-hg@17: import java.io.IOException;
franta-hg@17: import java.nio.charset.StandardCharsets;
franta-hg@17: import java.util.Objects;
franta-hg@17: 
franta-hg@15: /**
franta-hg@130:  * Represents one item in StarDict index file (.idx)
franta-hg@130:  * which links the term and its position and length in data file (.dict)
franta-hg@130:  * 
franta-hg@15:  * @author Ing. František Kučera (frantovo.cz)
franta-hg@15:  */
franta-hg@15: public class IndexEntry implements Comparable<IndexEntry> {
franta-hg@15: 
franta-hg@17: 	private String name;
franta-hg@17: 	private long offset;
franta-hg@17: 	private long length;
franta-hg@17: 	private long ordinal;
franta-hg@17: 
franta-hg@17: 	public IndexEntry(String name, long offset, long length) {
franta-hg@17: 		this.name = name;
franta-hg@17: 		this.offset = offset;
franta-hg@17: 		this.length = length;
franta-hg@17: 	}
franta-hg@17: 
franta-hg@17: 	public void serialize(DataOutputStream indexOutputStream) throws IOException {
franta-hg@17: 		indexOutputStream.write(name.getBytes(StandardCharsets.UTF_8));
franta-hg@17: 		indexOutputStream.write(0);
franta-hg@17: 		indexOutputStream.writeInt((int) offset); // unsigned int 32
franta-hg@17: 		indexOutputStream.writeInt((int) length); // unsigned int 32
franta-hg@17: 	}
franta-hg@17: 
franta-hg@17: 	public void setOrdinal(long ordinal) {
franta-hg@17: 		this.ordinal = ordinal;
franta-hg@17: 	}
franta-hg@17: 
franta-hg@17: 	public long getOrdinal() {
franta-hg@17: 		return ordinal;
franta-hg@17: 	}
franta-hg@17: 
franta-hg@15: 	@Override
franta-hg@15: 	public int compareTo(IndexEntry o) {
franta-hg@17: 		int nameDiff = name.compareTo(o.name);
franta-hg@17: 		if (nameDiff == 0) {
franta-hg@17: 			int offsetDiff = ((Long) offset).compareTo(o.offset);
franta-hg@17: 			if (offsetDiff == 0) {
franta-hg@17: 				return ((Long) length).compareTo(o.length);
franta-hg@17: 			} else {
franta-hg@17: 				return offsetDiff;
franta-hg@17: 			}
franta-hg@17: 		} else {
franta-hg@17: 			return nameDiff;
franta-hg@17: 		}
franta-hg@17: 	}
franta-hg@17: 
franta-hg@17: 	@Override
franta-hg@17: 	public boolean equals(Object o) {
franta-hg@17: 		return o instanceof IndexEntry && compareTo((IndexEntry) o) == 0;
franta-hg@17: 	}
franta-hg@17: 
franta-hg@17: 	@Override
franta-hg@17: 	public int hashCode() {
franta-hg@17: 		int hash = 5;
franta-hg@17: 		hash = 53 * hash + Objects.hashCode(this.name);
franta-hg@17: 		hash = 53 * hash + (int) (this.offset ^ (this.offset >>> 32));
franta-hg@17: 		hash = 53 * hash + (int) (this.length ^ (this.length >>> 32));
franta-hg@17: 		return hash;
franta-hg@15: 	}
franta-hg@15: }