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[Minor] added cache mode setting for rest http header (defaults to 

no-cache)
This commit is contained in:
Reto Breitenmoser 2015-01-17 10:30:45 +01:00
parent e44775f30b
commit e39df60247
2 changed files with 51 additions and 0 deletions
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7
li.strolch.rest/src/main/java/li/strolch/rest/RestfulStrolchComponent.java
View File

@ -20,6 +20,7 @@ import java.text.MessageFormat;
import li.strolch.agent.api.ComponentContainer;
import li.strolch.agent.api.StrolchComponent;
import li.strolch.rest.filters.AccessControlResponseFilter;
import li.strolch.rest.filters.HttpCacheResponseFilter;
import li.strolch.runtime.configuration.ComponentConfiguration;
import org.glassfish.jersey.server.ServerProperties;
@ -35,6 +36,7 @@ public class RestfulStrolchComponent extends StrolchComponent {
private static final String PARAM_CORS_ORIGIN = "corsOrigin"; //$NON-NLS-1$
private static final String PARAM_REST_LOGGING = "restLogging"; //$NON-NLS-1$
private static final String PARAM_REST_LOGGING_ENTITY = "restLoggingEntity"; //$NON-NLS-1$
private static final String PARAM_HTTP_CACHE_MODE = "httpCacheMode"; //$NON-NLS-1$
/**
* Allowed values:
@ -69,6 +71,7 @@ public class RestfulStrolchComponent extends StrolchComponent {
private String corsOrigin;
private boolean restLogging;
private boolean restLoggingEntity;
private String cacheMode;
/**
* @param container
@ -140,6 +143,10 @@ public class RestfulStrolchComponent extends StrolchComponent {
String msg = "Set restLogging={0} with logEntities={1} restTracing={2} with threshold={3}"; //$NON-NLS-1$
logger.info(MessageFormat.format(msg, this.restLogging, this.restLoggingEntity, this.restTracing,
this.restTracingThreshold));
// set http cache mode
this.cacheMode = configuration.getString(PARAM_HTTP_CACHE_MODE, HttpCacheResponseFilter.NO_CACHE);
logger.info("HTTP header cache mode is set to {}",cacheMode);
super.initialize(configuration);
}

44
li.strolch.rest/src/main/java/li/strolch/rest/filters/HttpCacheResponseFilter.java Normal file
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@ -0,0 +1,44 @@
package li.strolch.rest.filters;
import java.io.IOException;
import javax.annotation.Priority;
import javax.ws.rs.Priorities;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerResponseContext;
import javax.ws.rs.container.ContainerResponseFilter;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.Provider;
@Provider
@Priority(Priorities.HEADER_DECORATOR)
public class HttpCacheResponseFilter implements ContainerResponseFilter {
public static final String NO_CACHE = "no-cache"; //$NON-NLS-1$
private static String cacheMode = NO_CACHE;
@Override
public void filter(ContainerRequestContext requestContext, ContainerResponseContext responseContext)
throws IOException {
MultivaluedMap<String, Object> headers = responseContext.getHeaders();
headers.add(HttpHeaders.CACHE_CONTROL, cacheMode);
}
/**
* @return the cacheMode
*/
public static String getCacheMode() {
return cacheMode;
}
/**
* @param cacheMode
* the cacheMode to set
*/
public static void setCacheMode(String cacheMode) {
HttpCacheResponseFilter.cacheMode = cacheMode;
}
}