com.cloudera.exhibit.core.simple.SimpleFrame.java Source code

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Here is the source code for com.cloudera.exhibit.core.simple.SimpleFrame.java

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/*
 * Copyright (c) 2015, Cloudera, Inc. All Rights Reserved.
 *
 * Cloudera, Inc. 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
 *
 * This software 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 com.cloudera.exhibit.core.simple;

import com.cloudera.exhibit.core.Frame;
import com.cloudera.exhibit.core.Obs;
import com.cloudera.exhibit.core.ObsDescriptor;
import com.google.common.collect.ImmutableList;

import java.util.Iterator;
import java.util.List;

public class SimpleFrame extends Frame {

    private final ObsDescriptor descriptor;
    private final List<Obs> observations;

    public static SimpleFrame of(Obs... obs) {
        return new SimpleFrame(ImmutableList.copyOf(obs));
    }

    public SimpleFrame(ObsDescriptor descriptor) {
        this(descriptor, ImmutableList.<Obs>of());
    }

    public SimpleFrame(List<Obs> observations) {
        this(observations.get(0).descriptor(), observations);
    }

    public SimpleFrame(ObsDescriptor descriptor, List<Obs> observations) {
        this.descriptor = descriptor;
        this.observations = observations;
    }

    @Override
    public ObsDescriptor descriptor() {
        return descriptor;
    }

    @Override
    public int size() {
        return observations.size();
    }

    @Override
    public Obs get(int index) {
        return observations.get(index);
    }

    @Override
    public Iterator<Obs> iterator() {
        return observations.iterator();
    }

    @Override
    public String toString() {
        return observations.toString();
    }
}