CompilationErrorHandler


1   /* *****************************************************************************
2    * CompilationErrorHandler.java
3    * ****************************************************************************/
4   
5   /* J_LZ_COPYRIGHT_BEGIN *******************************************************
6   * Copyright 2001-2004 Laszlo Systems, Inc.  All Rights Reserved.              *
7   * Use is subject to license terms.                                            *
8   * J_LZ_COPYRIGHT_END *********************************************************/
9   
10  package org.openlaszlo.compiler;
11  import org.jdom.Element;
12  import org.openlaszlo.utils.ChainedException;
13  import java.lang.Integer  ;
14  import java.io.*;
15  import java.util.*;
16  import org.openlaszlo.server.*;
17  import org.openlaszlo.utils.*;
18  import org.openlaszlo.xml.internal.*;
19  
20  /** Hold a list of errors generated during compilation of an lzx file.
21   *
22   * The list of Errors are all wrapped by CompilationError
23   */
24  public class CompilationErrorHandler {
25      /** List of errors, these should all be of type CompilationError  */
26      private List errors = new Vector();
27      protected String   fileBase = "";
28      
29      public CompilationErrorHandler() {
30      }
31      
32      /** Set the base directory relative to which pathnames are
33       * reported. */
34      public void setFileBase(String   fileBase) {
35          this.fileBase = fileBase;
36      }
37      
38      /** Append an error to list of errors.
39       * @param error the error which occurred
40       */
41      void addError(CompilationError e) {
42          e.setFileBase(fileBase);
43          errors.add(e);
44      }
45  
46      /** Returns the list of errors
47       * @return the list of errors
48       */
49      public List getErrors()
50      {
51          return errors;
52      }
53  
54      /**
55       * @return length of error list */
56      public int size()
57      {
58          return errors.size();
59      }
60  
61      public boolean isEmpty() {
62          return errors.isEmpty();
63      }
64  
65      /**
66       * Appends all the errors from ERRS into our list of errors.
67       * @param other a list of errors to append from
68       */
69      public void appendErrors(CompilationErrorHandler other) {
70          for (Iterator iter = other.getErrors().iterator(); iter.hasNext(); ) {
71              CompilationError error = (CompilationError) iter.next();
72              errors.add(error);
73          }
74      }
75  
76      /**  @return a single consolidated error which holds list of error
77          message strings which were collected during a compile.
78       */
79      public CompilationError toCompilationError() {
80          StringBuffer   buffer = new StringBuffer  ();
81          for (Iterator iter = errors.iterator(); iter.hasNext(); ) {
82              CompilationError error = (CompilationError) iter.next();
83              buffer.append(error.getMessage());
84              if (iter.hasNext()) {
85                  buffer.append('\n');
86              }
87          }
88          return new CompilationError(buffer.toString());
89      }
90      
91      public String   toXML() {
92          StringBuffer   buffer = new StringBuffer  ();
93          for (Iterator iter = errors.iterator(); iter.hasNext(); ) {
94              CompilationError error = (CompilationError) iter.next();
95              buffer.append(error.toXML());
96              if (iter.hasNext()) {
97                  buffer.append("<br/>");
98              }
99          }
100         return buffer.toString();
101     }
102 }
103
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