1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.

     2 // Use of this source code is governed by a BSD-style license that can be

     3 // found in the LICENSE file.

     4 

     5 package org.chromium.debug.core.model;

     6 

     7 import org.chromium.sdk.Breakpoint;

     8 import org.chromium.sdk.JavascriptVm;

     9 import org.chromium.sdk.Script;

    10 

    11 /**

    12  * Id of resources loaded in V8 VM. We only know that they may have name (typically filename or

    13  * URL) or numerical id instead. This class reflects this.

    14  * The class also contains several utility methods that probably should be separated in the future.

    15  */

    16 public class VmResourceId {

    17 

    18   public static VmResourceId forName(String scriptName) {

    19     return new VmResourceId(scriptName);

    20   }

    21 

    22   public static VmResourceId forId(long scriptId) {

    23     return new VmResourceId(Long.valueOf(scriptId));

    24   }

    25 

    26   public static VmResourceId forScript(Script script) {

    27     if (script.getName() != null) {

    28       return forName(script.getName());

    29     } else {

    30       return forId(script.getId());

    31     }

    32   }

    33 

    34   private final Object value;

    35 

    36   private VmResourceId(Object value) {

    37     if (value == null) {

    38       throw new IllegalArgumentException("Null id value"); //$NON-NLS-1$

    39     }

    40     this.value = value;

    41   }

    42 

    43   @Override

    44   public int hashCode() {

    45     return value.hashCode();

    46   }

    47 

    48   @Override

    49   public boolean equals(Object obj) {

    50     if (obj instanceof VmResourceId == false) {

    51       return false;

    52     }

    53     VmResourceId other = (VmResourceId) obj;

    54     return this.value.equals(other.value);

    55   }

    56 

    57   /**

    58    * @return parameter for {@link JavascriptVm#setBreakpoint} method.

    59    */

    60   public Breakpoint.Type getTypeForBreakpoint() {

    61     if (value instanceof String) {

    62       return Breakpoint.Type.SCRIPT_NAME;

    63     } else {

    64       return Breakpoint.Type.SCRIPT_ID;

    65     }

    66   }

    67 

    68   /**

    69    * @return parameter for {@link JavascriptVm#setBreakpoint} method.

    70    */

    71   public String getTargetForBreakpoint() {

    72     return value.toString();

    73   }

    74 

    75   String createFileNameTemplate(boolean isEval) {

    76     if (value instanceof String) {

    77       return value.toString();

    78     } else {

    79       if (isEval) {

    80         return "<eval #" + value + ">"; //$NON-NLS-1$ //$NON-NLS-2$

    81       } else {

    82         return "<no name #" + value + ">"; //$NON-NLS-1$ //$NON-NLS-2$

    83       }

    84     }

    85 

    86   }

    87 

    88   @Override

    89   public String toString() {

    90     return getEclipseSourceName();

    91   }

    92 

    93   /**

    94    * @return source name that is suitable for Eclipse debug source lookup.

    95    */

    96   public String getEclipseSourceName() {

    97     if (value instanceof String) {

    98       String stringValue = (String) value;

    99       if (stringValue.startsWith("#")) {

   100         // Quote it.

   101         stringValue = "#" + stringValue;

   102       }

   103       return stringValue;

   104     } else {

   105       return "#" + value;

   106     }

   107   }

   108 

   109   public static VmResourceId parseString(String name) {

   110     if (name.startsWith("##")) {

   111       return VmResourceId.forName(name.substring(1));

   112     } else if (name.startsWith("#")) {

   113       return VmResourceId.forId(Long.parseLong(name.substring(1)));

   114     } else {

   115       return VmResourceId.forName(name);

   116     }

   117   }

   118 }