/*
* 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.indexer.field;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.hadoop.io.Writable;
/**
* A class that holds a grouping of FieldWritable objects.
*/
public class FieldsWritable
implements Writable {
private List<FieldWritable> fieldsList = new ArrayList<FieldWritable>();
public FieldsWritable() {
}
public boolean hasField(String name) {
for (FieldWritable field : fieldsList) {
if (field.getName().equals(name)) {
return true;
}
}
return false;
}
public FieldWritable getField(String name) {
for (FieldWritable field : fieldsList) {
if (field.getName().equals(name)) {
return field;
}
}
return null;
}
public List<FieldWritable> getFields(String name) {
List<FieldWritable> named = new ArrayList<FieldWritable>();
for (FieldWritable field : fieldsList) {
if (field.getName().equals(name)) {
named.add(field);
}
}
return named.size() > 0 ? named : null;
}
public List<FieldWritable> getFieldsList() {
return fieldsList;
}
public void setFieldsList(List<FieldWritable> fieldsList) {
this.fieldsList = fieldsList;
}
public void readFields(DataInput in)
throws IOException {
fieldsList.clear();
int numFields = in.readInt();
for (int i = 0; i < numFields; i++) {
FieldWritable field = new FieldWritable();
field.readFields(in);
fieldsList.add(field);
}
}
public void write(DataOutput out)
throws IOException {
int numFields = fieldsList.size();
out.writeInt(numFields);
for (int i = 0; i < numFields; i++) {
fieldsList.get(i).write(out);
}
}
}