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java/org/apache/jasper/compiler/DefaultErrorHandler.java

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.jasper.compiler;
+
+import org.apache.jasper.JasperException;
+
+/**
+ * Default implementation of ErrorHandler interface.
+ *
+ * @author Jan Luehe
+ */
+class DefaultErrorHandler implements ErrorHandler {
+
+    /*
+     * Processes the given JSP parse error.
+     *
+     * @param fname Name of the JSP file in which the parse error occurred
+     * @param line Parse error line number
+     * @param column Parse error column number
+     * @param errMsg Parse error message
+     * @param exception Parse exception
+     */
+    @Override
+    public void jspError(String fname, int line, int column, String errMsg,
+            Exception ex) throws JasperException {
+        throw new JasperException(fname + " (" +
+                Localizer.getMessage("jsp.error.location",
+                        Integer.toString(line), Integer.toString(column)) +
+                ") " + errMsg, ex);
+    }
+
+    /*
+     * Processes the given JSP parse error.
+     *
+     * @param errMsg Parse error message
+     * @param exception Parse exception
+     */
+    @Override
+    public void jspError(String errMsg, Exception ex) throws JasperException {
+        throw new JasperException(errMsg, ex);
+    }
+
+    /*
+     * Processes the given javac compilation errors.
+     *
+     * @param details Array of JavacErrorDetail instances corresponding to the
+     * compilation errors
+     */
+    @Override
+    public void javacError(JavacErrorDetail[] details) throws JasperException {
+
+        if (details == null) {
+            return;
+        }
+
+        Object[] args = null;
+        StringBuilder buf = new StringBuilder();
+
+        for (int i=0; i < details.length; i++) {
+            if (details[i].getJspBeginLineNumber() >= 0) {
+                args = new Object[] {
+                        Integer.valueOf(details[i].getJspBeginLineNumber()),
+                        details[i].getJspFileName() };
+                buf.append(System.lineSeparator());
+                buf.append(System.lineSeparator());
+                buf.append(Localizer.getMessage("jsp.error.single.line.number",
+                        args));
+                buf.append(System.lineSeparator());
+                buf.append(details[i].getErrorMessage());
+                buf.append(System.lineSeparator());
+                buf.append(details[i].getJspExtract());
+            } else {
+                args = new Object[] {
+                        Integer.valueOf(details[i].getJavaLineNumber()),
+                        details[i].getJavaFileName() };
+                buf.append(System.lineSeparator());
+                buf.append(System.lineSeparator());
+                buf.append(Localizer.getMessage("jsp.error.java.line.number",
+                        args));
+                buf.append(System.lineSeparator());
+                buf.append(details[i].getErrorMessage());
+            }
+        }
+        buf.append(System.lineSeparator());
+        buf.append(System.lineSeparator());
+        buf.append("Stacktrace:");
+        throw new JasperException(
+                Localizer.getMessage("jsp.error.unable.compile") + ": " + buf);
+    }
+
+    /**
+     * Processes the given javac error report and exception.
+     *
+     * @param errorReport Compilation error report
+     * @param exception Compilation exception
+     */
+    @Override
+    public void javacError(String errorReport, Exception exception)
+    throws JasperException {
+
+        throw new JasperException(
+                Localizer.getMessage("jsp.error.unable.compile"), exception);
+    }
+
+}