| /* |
| * 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.nutch.parse; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.net.MalformedURLException; |
| import java.util.Map.Entry; |
| |
| import org.apache.hadoop.io.MapWritable; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.io.Writable; |
| |
| /* An outgoing link from a page. */ |
| public class Outlink implements Writable { |
| |
| private String toUrl; |
| private String anchor; |
| private MapWritable md; |
| |
| public Outlink() { |
| } |
| |
| public Outlink(String toUrl, String anchor) throws MalformedURLException { |
| this.toUrl = toUrl; |
| if (anchor == null) |
| anchor = ""; |
| this.anchor = anchor; |
| md = null; |
| } |
| |
| public void readFields(DataInput in) throws IOException { |
| toUrl = Text.readString(in); |
| anchor = Text.readString(in); |
| boolean hasMD = in.readBoolean(); |
| if (hasMD) { |
| md = new org.apache.hadoop.io.MapWritable(); |
| md.readFields(in); |
| } else |
| md = null; |
| } |
| |
| /** Skips over one Outlink in the input. */ |
| public static void skip(DataInput in) throws IOException { |
| Text.skip(in); // skip toUrl |
| Text.skip(in); // skip anchor |
| boolean hasMD = in.readBoolean(); |
| if (hasMD) { |
| MapWritable metadata = new org.apache.hadoop.io.MapWritable(); |
| metadata.readFields(in); |
| ; |
| } |
| } |
| |
| public void write(DataOutput out) throws IOException { |
| Text.writeString(out, toUrl); |
| Text.writeString(out, anchor); |
| if (md != null && md.size() > 0) { |
| out.writeBoolean(true); |
| md.write(out); |
| } else { |
| out.writeBoolean(false); |
| } |
| } |
| |
| public static Outlink read(DataInput in) throws IOException { |
| Outlink outlink = new Outlink(); |
| outlink.readFields(in); |
| return outlink; |
| } |
| |
| public String getToUrl() { |
| return toUrl; |
| } |
| |
| public void setUrl(String toUrl) { |
| this.toUrl = toUrl; |
| } |
| |
| public String getAnchor() { |
| return anchor; |
| } |
| |
| public MapWritable getMetadata() { |
| return md; |
| } |
| |
| public void setMetadata(MapWritable md) { |
| this.md = md; |
| } |
| |
| public boolean equals(Object o) { |
| if (!(o instanceof Outlink)) |
| return false; |
| Outlink other = (Outlink) o; |
| return this.toUrl.equals(other.toUrl) && this.anchor.equals(other.anchor); |
| } |
| |
| public String toString() { |
| StringBuffer repr = new StringBuffer("toUrl: "); |
| repr.append(toUrl); |
| repr.append(" anchor: "); |
| repr.append(anchor); |
| if (md != null && !md.isEmpty()) { |
| for (Entry<Writable, Writable> e : md.entrySet()) { |
| repr.append(" "); |
| repr.append(e.getKey()); |
| repr.append(": "); |
| repr.append(e.getValue()); |
| } |
| } |
| return repr.toString(); |
| } |
| |
| @Override |
| public int hashCode() { |
| return toUrl.hashCode() ^ anchor.hashCode(); |
| } |
| } |