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author | fmoga <fmoga@13f79535-47bb-0310-9956-ffa450edef68> | 2011-02-12 09:19:33 +0000 |
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committer | fmoga <fmoga@13f79535-47bb-0310-9956-ffa450edef68> | 2011-02-12 09:19:33 +0000 |
commit | f0527e13c01fe1fecbd195a70192b6caa9e5f7d0 (patch) | |
tree | 6a5859781e4f7ab190ce781d60744df738b37349 /sca-java-2.x/tags/2.0-Beta2-RC3/modules/common-http/src/main/java/org/apache/tuscany/sca/common/http/HTTPUtils.java | |
parent | 4f62b1f3e877a6ca26cfdd1670a550bc6a77477f (diff) |
Create the 2.0-Beta2-RC3 tag.
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1070049 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/tags/2.0-Beta2-RC3/modules/common-http/src/main/java/org/apache/tuscany/sca/common/http/HTTPUtils.java | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta2-RC3/modules/common-http/src/main/java/org/apache/tuscany/sca/common/http/HTTPUtils.java b/sca-java-2.x/tags/2.0-Beta2-RC3/modules/common-http/src/main/java/org/apache/tuscany/sca/common/http/HTTPUtils.java new file mode 100644 index 0000000000..6ab6216522 --- /dev/null +++ b/sca-java-2.x/tags/2.0-Beta2-RC3/modules/common-http/src/main/java/org/apache/tuscany/sca/common/http/HTTPUtils.java @@ -0,0 +1,110 @@ +/* + * 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.tuscany.sca.common.http; + +import java.math.BigInteger; +import java.security.MessageDigest; + +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; + +/** + * + * @tuscany.spi.extension.asclient + * + */ +public class HTTPUtils { + + /** + * Utility method to set common http headers and other stuff in a + * default http response. Applications / Extensions can then override and + * tweak as they see fit. + * + * @param response + */ + public static void prepareHTTPResponse(HttpServletResponse response) { + response.setDateHeader("Date", System.currentTimeMillis()); + } + + /** + * Calculate the relative request path taking in consideration if + * the application is running in a embedded webContatiner or from + * within a web application server host environment + * + * @param request The http request + * @return the relative path + */ + public static String getRequestPath(HttpServletRequest request) { + // Get the request path + String contextPath = request.getContextPath(); + String servletPath = request.getServletPath(); + String requestURI = request.getRequestURI(); + + int contextPathLength = contextPath.length(); + int servletPathLenght = servletPath.contains(contextPath) ? servletPath.length() - contextPath.length() : servletPath.length(); + + String requestPath = requestURI.substring(contextPathLength + servletPathLenght); + + return requestPath; + } + + /** + * Calculate the context root for an application taking in consideration if + * the application is running in a embedded webContatiner or from + * within a web application server host environment. + * + * In the case of webContainer the contextRoot will always be a empty string. + * + * @param request The http request + * @return the contextRoot + */ + public static String getContextRoot(HttpServletRequest request) { + // Get the request path + String contextPath = request.getContextPath(); + String requestURI = request.getRequestURI(); + + int contextPathLength = contextPath.length(); + + String contextRoot = requestURI.substring(0, contextPathLength); + + return contextRoot; + } + + /** + * Calculate the ETag using MD5 Hash Algorithm + * @param content the content to hash + * @return + */ + public static String calculateHashETag(byte[] content) { + String eTag = "invalid"; + try { + MessageDigest messageDigest = MessageDigest.getInstance("MD5"); + byte[] digest = messageDigest.digest(content); + BigInteger number = new BigInteger(1, digest); + StringBuffer sb = new StringBuffer('0'); + sb.append(number.toString(16)); + eTag = sb.toString(); + } catch(Exception e) { + //ignore, we will return random etag + eTag = Integer.toString((new java.util.Random()).nextInt(Integer.MAX_VALUE)); + } + return eTag; + } +} |