diff options
Diffstat (limited to 'java/sca/modules/binding-http/src/main/java/org/apache/tuscany/sca/binding/http/HTTPCacheContext.java')
| -rw-r--r-- | java/sca/modules/binding-http/src/main/java/org/apache/tuscany/sca/binding/http/HTTPCacheContext.java | 257 |
1 files changed, 0 insertions, 257 deletions
diff --git a/java/sca/modules/binding-http/src/main/java/org/apache/tuscany/sca/binding/http/HTTPCacheContext.java b/java/sca/modules/binding-http/src/main/java/org/apache/tuscany/sca/binding/http/HTTPCacheContext.java deleted file mode 100644 index 372118fbf2..0000000000 --- a/java/sca/modules/binding-http/src/main/java/org/apache/tuscany/sca/binding/http/HTTPCacheContext.java +++ /dev/null @@ -1,257 +0,0 @@ -/* - * 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.binding.http; - -import java.text.SimpleDateFormat; -import java.util.Date; - -import javax.servlet.http.HttpServletRequest; - -/** - * A class to store cache settings for Atom and HTTP requests and responses. - * - * Predicates are statements that work in conjunction with - * ETags and LastModified dates to determine if a precondition - * or postcondition is satisfied. - * See HTTP specification for how predicates wrk: - * http://tools.ietf.org/html/rfc2616 - * Example predicates in HTTP include If-Match, If-None-Match, - * If-Modified-Since, If-Unmodified-Since, If-Range. - - */ -public class HTTPCacheContext { - public static final SimpleDateFormat RFC822DateFormat = new SimpleDateFormat( "EEE, dd MMM yyyy HH:mm:ss Z" ); // RFC 822 date time - - public boolean enabled; - public String eTag; - public String lastModified; - public Date lastModifiedDate; - public boolean ifModifiedSince; - public boolean ifUnmodifiedSince; - public boolean ifMatch; - public boolean ifNoneMatch; - public boolean ifRange; - - /** - * An ETag is a unique ID for an item. It changes when - * a field in the item or the update date changes. - * See HTTP specification for how ETags work: - * http://tools.ietf.org/html/rfc2616 - * @return the eTag - */ - public String getETag() { - return eTag; - } - /** - * @param tag the eTag to set - */ - public void setETag(String tag) { - eTag = tag; - enabled = true; - } - /** - * The LastModified date is the time the item was last - * changed. See HTTP specification for how ETags work: - * http://tools.ietf.org/html/rfc2616 - * @return the lastModified - */ - public String getLastModified() { - return lastModified; - } - /** - * The LastModified date is the time the item was last - * changed. See HTTP specification for how ETags work: - * http://tools.ietf.org/html/rfc2616 - * @return the lastModified - */ - public Date getLastModifiedAsDate() { - return lastModifiedDate; - } - /** - * @param lastModified the lastModified to set - */ - public void setLastModified(String lastModified) throws java.text.ParseException { - this.lastModified = lastModified; - // Catch date formatting on input to help debugging. - lastModifiedDate = RFC822DateFormat.parse( lastModified ); - enabled = true; - } - - /** - * @param lastModified the lastModified to set - */ - public void setLastModified(Date updated) { - this.lastModified = RFC822DateFormat.format( updated ); - lastModifiedDate = updated; - enabled = true; - } - - /** - * @return the ifModifedSince - */ - public boolean isIfModifiedSince() { - return ifModifiedSince; - } - /** - * @param ifModifedSince the ifModifedSince to set - */ - public void setIfModifiedSince(boolean ifModifiedSince) { - this.ifModifiedSince = ifModifiedSince; - if ( ifModifiedSince ) - enabled = true; - } - /** - * @return the ifUnModifiedSince - */ - public boolean isIfUnmodifiedSince() { - return ifUnmodifiedSince; - } - /** - * @param ifUnModifiedSince the ifUnModifiedSince to set - */ - public void setIfUnmodifiedSince(boolean ifUnmodifiedSince) { - this.ifUnmodifiedSince = ifUnmodifiedSince; - if ( ifUnmodifiedSince ) - enabled = true; - } - /** - * @return the ifMatch - */ - public boolean isIfMatch() { - return ifMatch; - } - /** - * @param ifMatch the ifMatch to set - */ - public void setIfMatch(boolean ifMatch) { - this.ifMatch = ifMatch; - if ( ifMatch ) - enabled = true; - } - /** - * @return the ifNoneMatch - */ - public boolean isIfNoneMatch() { - return ifNoneMatch; - } - /** - * @param ifNoneMatch the ifNoneMatch to set - */ - public void setIfNoneMatch(boolean ifNoneMatch) { - this.ifNoneMatch = ifNoneMatch; - if ( ifNoneMatch ) - enabled = true; - } - /** - * @return the ifRange - */ - public boolean isIfRange() { - return ifRange; - } - /** - * @param ifRange the ifRange to set - */ - public void setIfRange(boolean ifRange) { - this.ifRange = ifRange; - if ( ifRange ) - enabled = true; - } - - public String toString() { - final String PREDPREFIX = ", predicates="; - StringBuffer sb = new StringBuffer(PREDPREFIX); - if ( ifMatch || ifNoneMatch || ifModifiedSince || ifUnmodifiedSince || ifRange ) { - if ( ifMatch ) { - if ( sb.length() > PREDPREFIX.length() ) sb.append( ", "); - sb.append("If-Match"); - } - if ( ifNoneMatch ) { - if ( sb.length() > PREDPREFIX.length() ) sb.append( ", "); - sb.append("If-None-Match"); - } - if ( ifModifiedSince ) { - if ( sb.length() > PREDPREFIX.length() ) sb.append( ", "); - sb.append("If-Modified-Since"); - } - if ( ifUnmodifiedSince ) { - if ( sb.length() > PREDPREFIX.length() ) sb.append( ", "); - sb.append("If-UnModified-Since"); - } - if ( ifRange ) { - if ( sb.length() > PREDPREFIX.length() ) sb.append( ", "); - sb.append("If-Range"); - } - } else { - sb.append("null"); - } - - return "eTag=" + eTag + ", lastModified=" + lastModified - + sb.toString(); - } - - /** - * Gets the cache context information (ETag, LastModified, predicates) from the Http request. - * @param request - * @return - */ - public static HTTPCacheContext getCacheContextFromRequest( HttpServletRequest request ) throws java.text.ParseException { - HTTPCacheContext context = new HTTPCacheContext(); - - String eTag = request.getHeader( "If-Match" ); - if ( eTag != null ) { - context.setETag( eTag ); - context.setIfMatch( true ); - } - eTag = request.getHeader( "If-None-Match" ); - if ( eTag != null ) { - context.setETag( eTag ); - context.setIfNoneMatch( true ); - } - String lastModifiedString = request.getHeader( "If-Modified-Since" ); - if ( lastModifiedString != null ) { - context.setLastModified( lastModifiedString ); - context.setIfModifiedSince( true ); - } - lastModifiedString = request.getHeader( "If-Unmodified-Since" ); - if ( lastModifiedString != null ) { - context.setLastModified( lastModifiedString ); - context.setIfUnmodifiedSince( true ); - } - lastModifiedString = request.getHeader( "If-Range" ); - if ( lastModifiedString != null ) { - context.setLastModified( lastModifiedString ); - context.setIfRange( true ); - } - return context; - } - /** - * Enabled is true whenever ETag, LastModified, or predicate is set. - * @return the enabled - */ - public boolean isEnabled() { - return enabled; - } - /** - * @param enabled the enabled to set - */ - public void setEnabled(boolean enabled) { - this.enabled = enabled; - } -} |