spork-master/src/org/apache/pig/impl/util/BagFormat.java
/*
 * 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.pig.impl.util;

import java.util.Iterator;

import org.apache.pig.data.DataBag;
import org.apache.pig.data.Tuple;

public class BagFormat {

    public static String format(DataBag bag) {
        StringBuffer sb = new StringBuffer();
        sb.append('{');

        Iterator<Tuple> it = bag.iterator();
        while (it.hasNext()) {
            Tuple t = it.next();
            String s = TupleFormat.format(t);
            sb.append(s);
            if (it.hasNext())
                sb.append(",");
        }
        sb.append('}');
        return sb.toString();
    }
}
