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discoverability work

This commit is contained in:
Eugen 2013-05-27 18:30:54 +03:00
parent 279ccd2a55
commit 8b409e07a6
3 changed files with 72 additions and 5 deletions
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10
spring-security-rest/src/main/java/org/baeldung/web/controller/ResourceCreated.java
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@ -8,14 +8,14 @@ import org.springframework.context.ApplicationEvent;
public class ResourceCreated extends ApplicationEvent {
private final HttpServletResponse response;
private final HttpServletRequest request;
private final long idOfCreatedResource;
private final long idOfNewResource;
public ResourceCreated(final Object source, final HttpServletRequest request, final HttpServletResponse response, final long idOfCreatedResource) {
public ResourceCreated(final Object source, final HttpServletRequest request, final HttpServletResponse response, final long idOfNewResource) {
super(source);
this.request = request;
this.response = response;
this.idOfCreatedResource = idOfCreatedResource;
this.idOfNewResource = idOfNewResource;
}
// API
@ -28,8 +28,8 @@ public class ResourceCreated extends ApplicationEvent {
return request;
}
public long getIdOfCreatedResource() {
return idOfCreatedResource;
public long getIdOfNewResource() {
return idOfNewResource;
}
}

35
spring-security-rest/src/main/java/org/baeldung/web/controller/ResourceCreatedDiscoverabilityListener.java Normal file
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@ -0,0 +1,35 @@
package org.baeldung.web.controller;
import java.net.URI;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;
import org.springframework.web.util.UriTemplate;
import com.google.common.base.Preconditions;
import com.google.common.net.HttpHeaders;
@Component
class ResourceCreatedDiscoverabilityListener implements ApplicationListener<ResourceCreated> {
@Override
public void onApplicationEvent(final ResourceCreated resourceCreatedEvent) {
Preconditions.checkNotNull(resourceCreatedEvent);
final HttpServletRequest request = resourceCreatedEvent.getRequest();
final HttpServletResponse response = resourceCreatedEvent.getResponse();
final long idOfNewResource = resourceCreatedEvent.getIdOfNewResource();
addLinkHeaderOnResourceCreation(request, response, idOfNewResource);
}
void addLinkHeaderOnResourceCreation(final HttpServletRequest request, final HttpServletResponse response, final long idOfNewResource) {
final String requestUrl = request.getRequestURL().toString();
final URI uri = new UriTemplate("{requestUrl}/{idOfNewResource}").expand(requestUrl, idOfNewResource);
response.setHeader(HttpHeaders.LOCATION, uri.toASCIIString());
}
}

32
spring-security-rest/src/main/java/org/baeldung/web/controller/SingleResourceRetrievedDiscoverabilityListener.java Normal file
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@ -0,0 +1,32 @@
package org.baeldung.web.controller;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;
import com.google.common.base.Preconditions;
@Component
class SingleResourceRetrievedDiscoverabilityListener implements ApplicationListener<SingleResourceRetrieved> {
@Override
public void onApplicationEvent(final SingleResourceRetrieved resourceRetrievedEvent) {
Preconditions.checkNotNull(resourceRetrievedEvent);
final HttpServletRequest request = resourceRetrievedEvent.getRequest();
final HttpServletResponse response = resourceRetrievedEvent.getResponse();
addLinkHeaderOnSingleResourceRetrieval(request, response);
}
void addLinkHeaderOnSingleResourceRetrieval(final HttpServletRequest request, final HttpServletResponse response) {
final StringBuffer requestURL = request.getRequestURL();
final int positionOfLastSlash = requestURL.lastIndexOf("/");
final String uriForResourceCreation = requestURL.substring(0, positionOfLastSlash);
// final String linkHeaderValue = RESTURLUtil.createLinkHeader(uriForResourceCreation, "collection");
// response.addHeader(LINK_HEADER, linkHeaderValue);
}
}