code: /**
   * This file is part of Eclipse Steady.
   *
   * 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.
   *
   * SPDX-License-Identifier: Apache-2.0
   * SPDX-FileCopyrightText: Copyright (c) 2018-2020 SAP SE or an SAP affiliate company and Eclipse Steady contributors
   */
  package org.eclipse.steady.java.monitor.trace;
  
  import java.util.HashSet;
  import java.util.Set;
  
  import org.eclipse.steady.ConstructId;
  import org.eclipse.steady.java.monitor.Loader;
  import org.eclipse.steady.shared.json.JacksonUtil;
  import org.eclipse.steady.shared.json.JsonBuilder;
  import org.eclipse.steady.shared.json.model.Application;
  import org.eclipse.steady.shared.util.StringUtil;
  
  /**
   * Represents the usage of a given construct.
   */
  public class ConstructUsage {
    private long t = -1;
    private ConstructId c = null;
    private int counter = 1;
    /** The URL of the resource from where the construct was loaded, can be the URL of a class file or a JAR. */
    private String resourceURL = null;
  
    private String archiveDigest = null;
    private String archiveFileName = null;
    private Loader loader = null;
    private Application appContext = null;
    private String executionId = null;
    private Set<ConstructId> junitContexts = new HashSet<ConstructId>();
    /**
     * <p>Constructor for ConstructUsage.</p>
     *
     * @param _c a {@link org.eclipse.steady.ConstructId} object.
     * @param _resource_url a {@link java.lang.String} object.
     * @param _t a long.
     */
    public ConstructUsage(ConstructId _c, String _resource_url, long _t) {
      this(_c, _resource_url, null, _t, 1);
    }
    /**
     * <p>Constructor for ConstructUsage.</p>
     *
     * @param _c a {@link org.eclipse.steady.ConstructId} object.
     * @param _resource_url a {@link java.lang.String} object.
     * @param _loader a {@link org.eclipse.steady.java.monitor.Loader} object.
     * @param _t a long.
     * @param _counter a int.
     */
    public ConstructUsage(
        ConstructId _c, String _resource_url, Loader _loader, long _t, int _counter) {
      this.c = _c;
      this.resourceURL = _resource_url;
      this.loader = _loader;
      this.t = _t;
      this.counter = _counter;
    }
    /**
     * <p>addJUnitContext.</p>
     *
     * @param _junit a {@link org.eclipse.steady.ConstructId} object.
     */
    public void addJUnitContext(ConstructId _junit) {
      this.junitContexts.add(_junit);
    }
    /**
     * <p>getJUnitContexts.</p>
     *
     * @return a {@link java.util.Set} object.
     */
    public Set<ConstructId> getJUnitContexts() {
      return this.junitContexts;
    }
    /**
     * <p>Getter for the field <code>counter</code>.</p>
     *
     * @return a int.
     */
    public int getCounter() {
      return this.counter;
    }
    /**
     * <p>Getter for the field <code>appContext</code>.</p>
     *
     * @return a {@link org.eclipse.steady.shared.json.model.Application} object.
     */
    public Application getAppContext() {
      return this.appContext;
    }
    /**
     * <p>Setter for the field <code>appContext</code>.</p>
     *
     * @param _ctx a {@link org.eclipse.steady.shared.json.model.Application} object.
     */
    public void setAppContext(Application _ctx) {
      this.appContext = _ctx;
    }
    /**
     * <p>Getter for the field <code>resourceURL</code>.</p>
     *
     * @return a {@link java.lang.String} object.
     */
    public String getResourceURL() {
      return this.resourceURL;
    }
    /**
     * <p>Getter for the field <code>archiveDigest</code>.</p>
     *
     * @return a {@link java.lang.String} object.
     */
    public String getArchiveDigest() {
      return archiveDigest;
    }
    /**
     * <p>Setter for the field <code>archiveDigest</code>.</p>
     *
     * @param resourceDigest a {@link java.lang.String} object.
     */
    public void setArchiveDigest(String resourceDigest) {
      this.archiveDigest = resourceDigest;
    }
    /**
     * <p>Getter for the field <code>archiveFileName</code>.</p>
     *
     * @return a {@link java.lang.String} object.
     */
    public String getArchiveFileName() {
      return archiveFileName;
    }
    /**
     * <p>Setter for the field <code>archiveFileName</code>.</p>
     *
     * @param archiveFileName a {@link java.lang.String} object.
     */
    public void setArchiveFileName(String archiveFileName) {
      this.archiveFileName = archiveFileName;
    }
    /**
     * <p>Getter for the field <code>loader</code>.</p>
     *
     * @return a {@link org.eclipse.steady.java.monitor.Loader} object.
     */
    public Loader getLoader() {
      return this.loader;
    }
    /**
     * <p>Setter for the field <code>executionId</code>.</p>
     *
     * @param _id a {@link java.lang.String} object.
     */
    public void setExecutionId(String _id) {
      this.executionId = _id;
    }
  
    /**
     * <p>toString.</p>
     *
     * @return a {@link java.lang.String} object.
     */
    public String toString() {
      final StringBuilder b = new StringBuilder();
      b.append("ConstructUsage [timestamp=")
          .append(StringUtil.formatDate(this.t))
          .append(", count=")
          .append(counter);
      if (this.archiveFileName != null) b.append(", archiveFileName=").append(this.archiveFileName);
      if (this.archiveDigest != null) b.append(", archiveDigest=").append(this.archiveDigest);
      // if(this.resourceURL!=null) b.append(", resourceURL=").append(this.resourceURL);
      b.append(", construct=").append(c.toString()).append("]");
      return b.toString();
    }
    /**
     * <p>toJSON.</p>
     *
     * @return a {@link java.lang.String} object.
     */
    public String toJSON() {
      final JsonBuilder jb = new JsonBuilder();
      jb.startObject();
      jb.appendObjectProperty("tracedAt", StringUtil.formatDate(this.t));
      jb.appendObjectProperty("count", Integer.valueOf(this.counter));
      jb.appendObjectProperty("executionId", this.executionId);
      if (this.appContext != null)
        jb.appendObjectProperty("app", JacksonUtil.asJsonString(this.appContext), false);
      if (this.archiveFileName != null && this.archiveDigest != null) {
        jb.appendObjectProperty("lib", this.archiveDigest);
        jb.appendObjectProperty("filename", this.archiveFileName);
      }
      if (this.junitContexts != null && this.junitContexts.size() > 0) {
        jb.startArrayProperty("junits");
        for (ConstructId junit : this.junitContexts) jb.appendJsonToArray(junit.toJSON());
        jb.endArray();
      }
      // if(this.loader!=null) b.append(", \"loader\" : ").append(this.loader.toJSON()).append("");
      jb.appendObjectProperty("constructId", c.toJSON(), false);
      jb.endObject();
      return jb.toString();
    }
    /**
     * <p>merge.</p>
     *
     * @param _other a {@link org.eclipse.steady.java.monitor.trace.ConstructUsage} object.
     */
    public void merge(ConstructUsage _other) {
      this.counter = Math.max(this.counter, _other.getCounter());
      this.junitContexts.addAll(_other.getJUnitContexts());
    }
    /** {@inheritDoc} */
    @Override
    public int hashCode() {
      final int prime = 31;
      int result = 1;
      result = prime * result + ((appContext == null) ? 0 : appContext.hashCode());
      result = prime * result + ((c == null) ? 0 : c.hashCode());
      result = prime * result + ((resourceURL == null) ? 0 : resourceURL.hashCode());
      return result;
    }
    /** {@inheritDoc} */
    @Override
    public boolean equals(Object obj) {
      if (this == obj) return true;
      if (obj == null) return false;
      if (getClass() != obj.getClass()) return false;
      ConstructUsage other = (ConstructUsage) obj;
      if (appContext == null) {
        if (other.appContext != null) return false;
      } else if (!appContext.equals(other.appContext)) return false;
      if (c == null) {
        if (other.c != null) return false;
      } else if (!c.equals(other.c)) return false;
      if (resourceURL == null) {
        if (other.resourceURL != null) return false;
      } else if (!resourceURL.equals(other.resourceURL)) return false;
      return true;
    }
  }
  