1 files changed, 83 insertions, 0 deletions
diff --git a/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/auth/builder/Builder.java b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/auth/builder/Builder.java
new file mode 100644
index 000000000..5757c398e
--- /dev/null
+++ b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/auth/builder/Builder.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2003 Federal Chancellery Austria
+ * MOA-ID has been developed in a cooperation between BRZ, the Federal
+ * Chancellery Austria - ICT staff unit, and Graz University of Technology.
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://www.osor.eu/eupl/
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ *
+ * This product combines work with different licenses. See the "NOTICE" text
+ * file for details on the various modules and licenses.
+ * The "NOTICE" text file is part of the distribution. Any derivative works
+ * that you distribute must include a readable copy of the "NOTICE" text file.
+ */
+
+
+package at.gv.egovernment.moa.id.auth.builder;
+
+import at.gv.egovernment.moa.id.BuildException;
+import at.gv.egovernment.moa.util.StringUtils;
+
+/**
+ * Base class for HTML/XML builders providing commonly useful functions.
+ * 
+ * @author Paul Ivancsics
+ * @version $Id$
+ */
+public class Builder {
+  
+  /**
+   * Replaces a given number of occurences of a special tag in an XML or HTML template by a value.
+   * @param template html template
+   * @param tag special tag
+   * @param value value replacing the tag
+   * @param expected specifies if the tag is expected to present; if <code>true</code> and the tag
+   *                 is not present, an exception is thrown; if <code>false</code> and the tag is
+   *                 not present, the original string is returned
+   * @param maxreplacements Set -1 to replace each occurence of tag, or limit replacements by a given positive number  
+   * @return XML or HTML code, the tag replaced
+   * @throws BuildException when template does not contain the tag
+   */
+  protected String replaceTag(
+    String template, 
+    String tag, 
+    String value, 
+    boolean expected, 
+    int maxreplacements) 
+  throws BuildException 
+  {
+    String result = template;
+    int index = result.indexOf(tag);
+    if (index < 0) {
+      if (expected) {
+    	// Substring not found but should
+        throw new BuildException(
+                "builder.01", 
+                new Object[] {"&lt;" + tag.substring(1, tag.length() - 1) + "&gt;"});
+      }
+    } else {
+       // replace each occurence
+       if (maxreplacements == -1) {
+         return StringUtils.replaceAll(template, tag, value);       
+       } else {
+         int found = 1;
+         while (index > -1 && (found <= maxreplacements)) {
+           result = result.substring(0, index) + value + result.substring(index + tag.length());
+           index = result.indexOf(tag);
+           if (index > -1) found += 1;
+         }
+       }
+    }
+    return result;
+  }
+
+}