org.commonjava.cartographer.request.GraphComposition.java Source code

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Here is the source code for org.commonjava.cartographer.request.GraphComposition.java

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/**
 * Copyright (C) 2013 Red Hat, Inc. (jdcasey@commonjava.org)
 *
 * Licensed 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.commonjava.cartographer.request;

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

import com.fasterxml.jackson.annotation.JsonIgnore;

public class GraphComposition implements Iterable<GraphDescription> {

    private GraphCalculationType calculation;

    private List<GraphDescription> graphs;

    protected GraphComposition() {
    }

    public GraphComposition(final GraphCalculationType calculation, final List<GraphDescription> graphs) {
        this.calculation = calculation;
        this.graphs = graphs;
    }

    public GraphCalculationType getCalculation() {
        return calculation;
    }

    public List<GraphDescription> getGraphs() {
        return graphs;
    }

    public void setCalculation(final GraphCalculationType calculation) {
        this.calculation = calculation;
    }

    public void setGraphs(final List<GraphDescription> graphs) {
        this.graphs = graphs;
    }

    public void setDefaultPreset(final String defaultPreset) {
        if (graphs != null) {
            for (final GraphDescription graph : graphs) {
                graph.setDefaultPreset(defaultPreset);
            }
        }
    }

    @Override
    public String toString() {
        return String.format("GraphComposition [graphs=%s, calculation=%s]", graphs, calculation);
    }

    public void normalize() {
        for (final Iterator<GraphDescription> it = graphs.iterator(); it.hasNext();) {
            final GraphDescription graph = it.next();
            if (graph == null) {
                it.remove();
                continue;
            }

            graph.normalize();
        }
    }

    @Override
    public Iterator<GraphDescription> iterator() {
        return graphs == null ? Collections.<GraphDescription>emptySet().iterator() : graphs.iterator();
    }

    @JsonIgnore
    public boolean valid() {
        return graphs != null && !graphs.isEmpty();
    }

    public int size() {
        return graphs == null ? 0 : graphs.size();
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((calculation == null) ? 0 : calculation.hashCode());
        result = prime * result + ((graphs == null) ? 0 : graphs.hashCode());
        return result;
    }

    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final GraphComposition other = (GraphComposition) obj;
        if (calculation != other.calculation) {
            return false;
        }
        if (graphs == null) {
            if (other.graphs != null) {
                return false;
            }
        } else if (!graphs.equals(other.graphs)) {
            return false;
        }
        return true;
    }
}