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

Introduction

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

Source

/*
 * 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.Exhibit;
import com.cloudera.exhibit.core.ExhibitDescriptor;
import com.cloudera.exhibit.core.ExhibitId;
import com.cloudera.exhibit.core.Frame;
import com.cloudera.exhibit.core.Obs;
import com.cloudera.exhibit.core.ObsDescriptor;
import com.google.common.base.Function;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Maps;
import sun.java2d.pipe.SpanShapeRenderer;

import java.util.Map;
import java.util.Set;

public class SimpleExhibit implements Exhibit {

    private final Obs attributes;
    private final Map<String, Frame> frames;

    public static SimpleExhibit of(String name, Frame frame, Object... args) {
        Map<String, Frame> m = Maps.newHashMap();
        m.put(name, frame);
        for (int i = 0; i < args.length; i += 2) {
            m.put(args[i].toString(), (Frame) args[i + 1]);
        }
        return new SimpleExhibit(Obs.EMPTY, m);
    }

    public SimpleExhibit(Obs attributes, Map<String, Frame> frames) {
        this.attributes = attributes;
        this.frames = frames;
    }

    @Override
    public ExhibitDescriptor descriptor() {
        return new ExhibitDescriptor(attributes.descriptor(),
                Maps.transformValues(frames, new Function<Frame, ObsDescriptor>() {
                    @Override
                    public ObsDescriptor apply(Frame frame) {
                        return frame.descriptor();
                    }
                }));
    }

    @Override
    public Obs attributes() {
        return attributes;
    }

    @Override
    public Map<String, Frame> frames() {
        return frames;
    }

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("Obs:\n");
        sb.append(attributes);
        sb.append("\n");
        for (Map.Entry<String, Frame> e : frames.entrySet()) {
            sb.append("Frame ").append(e.getKey()).append(": [\n");
            for (Obs obs : e.getValue()) {
                sb.append(obs).append(",\n");
            }
            sb.append("]");
        }
        return sb.toString();
    }
}