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-rw-r--r--common/src/at/gv/egovernment/moa/util/StringUtils.java148
1 files changed, 148 insertions, 0 deletions
diff --git a/common/src/at/gv/egovernment/moa/util/StringUtils.java b/common/src/at/gv/egovernment/moa/util/StringUtils.java
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+++ b/common/src/at/gv/egovernment/moa/util/StringUtils.java
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+// Copyright (C) 2002 IAIK
+// email: jce-info@iaik.tu-graz.ac.at
+//
+// All rights reserved.
+//
+// This source is provided for inspection purposes and recompilation only,
+// unless specified differently in a contract with IAIK. This source has to
+// be kept in strict confidence and must not be disclosed to any third party
+// under any circumstances. Redistribution in source and binary forms, with
+// or without modification, are <not> permitted in any case!
+//
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+
+package at.gv.egovernment.moa.util;
+
+import java.util.StringTokenizer;
+
+/**
+ * Utitility functions for string manipulations.
+ *
+ * @author Harald Bratko
+ */
+public class StringUtils {
+
+ /**
+ * Removes all blanks and tabs from the given string.
+ *
+ * @param s The string to remove all blanks and tabs from.
+ * @return The input string with all blanks and tabs removed from.
+ */
+ public static String removeBlanks(String s) {
+ StringTokenizer st = new StringTokenizer(s);
+ StringBuffer sb = new StringBuffer(s.length());
+ while (st.hasMoreTokens()) {
+ sb.append(st.nextToken());
+ }
+ return sb.toString();
+ }
+
+ /**
+ * Removes all occurences of the specified token from the the given string.
+ *
+ * @param s The string to remove all occurences of the specified token from.
+ * @return The input string with all occurences of the specified token removed from.
+ */
+ public static String removeToken(String s, String token) {
+ StringTokenizer st = new StringTokenizer(s, token);
+ StringBuffer sb = new StringBuffer(s.length());
+ while (st.hasMoreTokens()) {
+ sb.append(st.nextToken());
+ }
+ return sb.toString();
+ }
+
+ /**
+ * Removes all leading zeros from the input string.
+ *
+ * @param s The string remove the leading zeros from.
+ * @return The input string with the leading zeros removed from.
+ */
+ public static String deleteLeadingZeros(String s) {
+ StringBuffer sb = new StringBuffer(s);
+ int l = sb.length();
+ int j = 0;
+ for (int i=0; i<l; i++) {
+ if (sb.charAt(i) == '0') {
+ j++;
+ } else {
+ break;
+ }
+ }
+ return sb.substring(j, l);
+ }
+
+ /**
+ * Replaces each substring of string <code>s</code> that matches the given
+ * <code>search</code> string by the given <code>replace</code> string.
+ *
+ * @param s The string where the replacment should take place.
+ * @param search The pattern that should be replaced.
+ * @param replace The string that should replace all each <code>search</code>
+ * string within <code>s</code>.
+ * @return A string whrer all occurrence of <code>search</code> are
+ * replaced with <code>replace</code>.
+ */
+ public static String replaceAll (String s, String search, String replace)
+ {
+ StringBuffer sb = new StringBuffer();
+ int i = 0, j = 0;
+ int len = search.length();
+ while (j > -1)
+ {
+ j = s.indexOf(search, i);
+
+ if (j > -1)
+ {
+ sb.append(s.substring(i,j));
+ sb.append(replace);
+ i = j + len;
+ }
+ }
+
+ sb.append(s.substring(i, s.length()));
+
+ return sb.toString();
+ }
+
+ /**
+ * Changes the SecurityLayer version in the given string.
+ * This method usually takes as input an XML structure represented in a string
+ * format and changes the SecurityLayer namespaces prefixes and URIs from
+ * one SecurityLayer version to another.
+ * e.g.: code>sl10</code> to <code>sl</code> and
+ * <code>http://www.buergerkarte.at/namespaces/securitylayer/20020225#</code>
+ * to
+ * <code>http://www.buergerkarte.at/namespaces/securitylayer/1.2#</code>
+ *
+ * @param s The string (usally an XML structure) where the
+ * SecurityLayer version should be changed.
+ * @param slPrefixOld The SecurityLayer namespace prefix that should be
+ * replaced by the new one.
+ * @param slPrefixNew The new SecurityLayer namespace prefix that should
+ * replace the old one.
+ * @param slNSUriOld The SecurityLayer namespace URI that should be
+ * replaced by the new one.
+ * @param slNSUriNew The new SecurityLayer namespace URI that should
+ * replace the old one.
+ * @return A string where the SecurityLayer namespace prefixes
+ * and URIs are replaced by new ones.
+ */
+ public static String changeSLVersion(String s, String slPrefixOld, String slPrefixNew, String slNSUriOld, String slNSUriNew) {
+ String retString = replaceAll(s, slPrefixOld, slPrefixNew);
+ retString = replaceAll(retString, slNSUriOld, slNSUriNew);
+ return retString ;
+ }
+
+}