View Javadoc

    1   /*
    2    * $Id: Link.java 471756 2006-11-06 15:01:43Z husted $
    3    *
    4    * Licensed to the Apache Software Foundation (ASF) under one
    5    * or more contributor license agreements.  See the NOTICE file
    6    * distributed with this work for additional information
    7    * regarding copyright ownership.  The ASF licenses this file
    8    * to you under the Apache License, Version 2.0 (the
    9    * "License"); you may not use this file except in compliance
    10   * with the License.  You may obtain a copy of the License at
    11   *
    12   *  http://www.apache.org/licenses/LICENSE-2.0
    13   *
    14   * Unless required by applicable law or agreed to in writing,
    15   * software distributed under the License is distributed on an
    16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    17   * KIND, either express or implied.  See the License for the
    18   * specific language governing permissions and limitations
    19   * under the License.
    20   */
    21  package org.apache.struts2.sitegraph.model;
    22
    23  import java.io.IOException;
    24
    25  /***
    26   */
    27  public class Link implements Render, Comparable {
    28      public static final int TYPE_FORM = 0;
    29      public static final int TYPE_ACTION = 1;
    30      public static final int TYPE_HREF = 2;
    31      public static final int TYPE_RESULT = 3;
    32      public static final int TYPE_REDIRECT = 4;
    33
    34      private SiteGraphNode from;
    35      private SiteGraphNode to;
    36      private int type;
    37      private String label;
    38
    39      public Link(SiteGraphNode from, SiteGraphNode to, int type, String label) {
    40          this.from = from;
    41          this.to = to;
    42          this.type = type;
    43          this.label = label;
    44      }
    45
    46      public void render(IndentWriter writer) throws IOException {
    47          writer.write(from.getFullName() + " -> " + to.getFullName() + " [label=\"" + getRealLabel() + "\"" + getColor() + "];");
    48      }
    49
    50      private String getRealLabel() {
    51          switch (type) {
    52              case TYPE_ACTION:
    53                  return "action" + label;
    54              case TYPE_FORM:
    55                  return "form" + label;
    56              case TYPE_HREF:
    57                  return "href" + label;
    58              case TYPE_REDIRECT:
    59                  return "redirect: " + label;
    60              case TYPE_RESULT:
    61                  return label;
    62          }
    63
    64          return "";
    65      }
    66
    67      private String getColor() {
    68          if (type == TYPE_RESULT || type == TYPE_ACTION) {
    69              return ",color=\"darkseagreen2\"";
    70          } else {
    71              return "";
    72          }
    73      }
    74
    75      public int compareTo(Object o) {
    76          Link other = (Link) o;
    77          int result = from.compareTo(other.from);
    78          if (result != 0) {
    79              return result;
    80          }
    81
    82          result = to.compareTo(other.to);
    83          if (result != 0) {
    84              return result;
    85          }
    86
    87          result = label.compareTo(other.label);
    88          if (result != 0) {
    89              return result;
    90          }
    91
    92          return new Integer(type).compareTo(new Integer(other.type));
    93      }
    94  }