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[HWKMETRICS-185] Copy but not port the filters from JAX-RS 2.0 implem…
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Stefan Negrea
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Aug 10, 2015
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56 changes: 56 additions & 0 deletions
56
...metrics-api-jaxrs-1.1/src/main/java/org/hawkular/metrics/api/jaxrs/filter/CorsFilter.java
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/* | ||
* Copyright 2014-2015 Red Hat, Inc. and/or its affiliates | ||
* and other contributors as indicated by the @author tags. | ||
* | ||
* Licensed 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.hawkular.metrics.api.jaxrs.filter; | ||
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import java.io.IOException; | ||
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import javax.ws.rs.container.ContainerRequestContext; | ||
import javax.ws.rs.container.ContainerResponseContext; | ||
import javax.ws.rs.container.ContainerResponseFilter; | ||
import javax.ws.rs.core.MultivaluedMap; | ||
import javax.ws.rs.ext.Provider; | ||
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/** | ||
* @author Stefan Negrea | ||
* | ||
*/ | ||
@Provider | ||
public class CorsFilter implements ContainerResponseFilter { | ||
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public static final String DEFAULT_ALLOWED_METHODS = "GET, POST, PUT, DELETE, OPTIONS, HEAD"; | ||
public static final String DEFAULT_ALLOWED_HEADERS = "origin,accept,content-type,hawkular-tenant"; | ||
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@Override | ||
public void filter(ContainerRequestContext requestContext, | ||
ContainerResponseContext responseContext) throws IOException { | ||
final MultivaluedMap<String, Object> headers = responseContext | ||
.getHeaders(); | ||
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String origin = "*"; | ||
if (headers.get("origin") != null && headers.get("origin").size() == 1 | ||
&& headers.get("origin").get(0) != null | ||
&& !headers.get("origin").get(0).equals("null")) { | ||
origin = headers.get("origin").get(0).toString(); | ||
} | ||
headers.add("Access-Control-Allow-Origin", origin); | ||
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headers.add("Access-Control-Allow-Credentials", "true"); | ||
headers.add("Access-Control-Allow-Methods", DEFAULT_ALLOWED_METHODS); | ||
headers.add("Access-Control-Max-Age", 72 * 60 * 60); | ||
headers.add("Access-Control-Allow-Headers", DEFAULT_ALLOWED_HEADERS); | ||
} | ||
} |
52 changes: 52 additions & 0 deletions
52
...api-jaxrs-1.1/src/main/java/org/hawkular/metrics/api/jaxrs/filter/EmptyPayloadFilter.java
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/* | ||
* Copyright 2014-2015 Red Hat, Inc. and/or its affiliates | ||
* and other contributors as indicated by the @author tags. | ||
* | ||
* Licensed 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. | ||
*/ | ||
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package org.hawkular.metrics.api.jaxrs.filter; | ||
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import java.io.IOException; | ||
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import javax.ws.rs.HttpMethod; | ||
import javax.ws.rs.container.ContainerRequestContext; | ||
import javax.ws.rs.container.ContainerRequestFilter; | ||
import javax.ws.rs.core.UriInfo; | ||
import javax.ws.rs.ext.Provider; | ||
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/** | ||
* Set the {@link org.hawkular.metrics.api.jaxrs.filter.EmptyPayloadFilter#EMPTY_PAYLOAD} context property to | ||
* {@link Boolean#TRUE} if the request is a POST. | ||
* | ||
* @author Thomas Segismont | ||
*/ | ||
@Provider | ||
public class EmptyPayloadFilter implements ContainerRequestFilter { | ||
public static final String EMPTY_PAYLOAD = EmptyPayloadFilter.class.getName(); | ||
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@Override | ||
public void filter(ContainerRequestContext requestContext) throws IOException { | ||
if (!HttpMethod.POST.equals(requestContext.getMethod())) { | ||
return; | ||
} | ||
UriInfo uriInfo = requestContext.getUriInfo(); | ||
String path = uriInfo.getPath(); | ||
if (path.startsWith("/db")) { | ||
// Skip some endpoints: | ||
// - Influx | ||
return; | ||
} | ||
requestContext.setProperty(EMPTY_PAYLOAD, Boolean.TRUE); | ||
} | ||
} |
82 changes: 82 additions & 0 deletions
82
...rs-1.1/src/main/java/org/hawkular/metrics/api/jaxrs/filter/MetricsServiceStateFilter.java
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/* | ||
* Copyright 2014-2015 Red Hat, Inc. and/or its affiliates | ||
* and other contributors as indicated by the @author tags. | ||
* | ||
* Licensed 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.hawkular.metrics.api.jaxrs.filter; | ||
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import static javax.ws.rs.core.MediaType.APPLICATION_JSON_TYPE; | ||
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import java.io.IOException; | ||
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import javax.inject.Inject; | ||
import javax.ws.rs.container.ContainerRequestContext; | ||
import javax.ws.rs.container.ContainerRequestFilter; | ||
import javax.ws.rs.core.Response; | ||
import javax.ws.rs.core.Response.Status; | ||
import javax.ws.rs.core.UriInfo; | ||
import javax.ws.rs.ext.Provider; | ||
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import org.hawkular.metrics.api.jaxrs.ApiError; | ||
import org.hawkular.metrics.api.jaxrs.MetricsServiceLifecycle; | ||
import org.hawkular.metrics.api.jaxrs.MetricsServiceLifecycle.State; | ||
import org.hawkular.metrics.api.jaxrs.handler.StatusHandler; | ||
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/** | ||
* @author Matt Wringe | ||
*/ | ||
@Provider | ||
public class MetricsServiceStateFilter implements ContainerRequestFilter { | ||
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private static final String STARTING = "Service unavailable while initializing."; | ||
private static final String FAILED = "Internal server error."; | ||
private static final String STOPPED = "The service is no longer running."; | ||
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@Inject | ||
private MetricsServiceLifecycle metricsServiceLifecycle; | ||
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@Override | ||
public void filter(ContainerRequestContext containerRequestContext) throws IOException { | ||
UriInfo uriInfo = containerRequestContext.getUriInfo(); | ||
String path = uriInfo.getPath(); | ||
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if (path.startsWith(StatusHandler.PATH)) { | ||
// The status page does not require the MetricsService to be up and running. | ||
return; | ||
} | ||
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if (metricsServiceLifecycle.getState() == State.STARTING) { | ||
// Fail since the Cassandra cluster is not yet up yet. | ||
Response response = Response.status(Status.SERVICE_UNAVAILABLE) | ||
.type(APPLICATION_JSON_TYPE) | ||
.entity(new ApiError(STARTING)) | ||
.build(); | ||
containerRequestContext.abortWith(response); | ||
} else if (metricsServiceLifecycle.getState() == State.FAILED) { | ||
// Fail since an error has occured trying to start the Metrics service | ||
Response response = Response.status(Status.INTERNAL_SERVER_ERROR) | ||
.type(APPLICATION_JSON_TYPE) | ||
.entity(new ApiError(FAILED)) | ||
.build(); | ||
containerRequestContext.abortWith(response); | ||
} else if (metricsServiceLifecycle.getState() == State.STOPPED || | ||
metricsServiceLifecycle.getState() == State.STOPPING) { | ||
Response response = Response.status(Status.SERVICE_UNAVAILABLE) | ||
.type(APPLICATION_JSON_TYPE) | ||
.entity(new ApiError(STOPPED)) | ||
.build(); | ||
containerRequestContext.abortWith(response); | ||
} | ||
} | ||
} |
73 changes: 73 additions & 0 deletions
73
...trics-api-jaxrs-1.1/src/main/java/org/hawkular/metrics/api/jaxrs/filter/TenantFilter.java
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/* | ||
* Copyright 2014-2015 Red Hat, Inc. and/or its affiliates | ||
* and other contributors as indicated by the @author tags. | ||
* | ||
* Licensed 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.hawkular.metrics.api.jaxrs.filter; | ||
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import static javax.ws.rs.core.MediaType.APPLICATION_JSON_TYPE; | ||
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import java.io.IOException; | ||
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import javax.ws.rs.container.ContainerRequestContext; | ||
import javax.ws.rs.container.ContainerRequestFilter; | ||
import javax.ws.rs.core.Response; | ||
import javax.ws.rs.core.Response.Status; | ||
import javax.ws.rs.core.UriInfo; | ||
import javax.ws.rs.ext.Provider; | ||
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import org.hawkular.metrics.api.jaxrs.ApiError; | ||
import org.hawkular.metrics.api.jaxrs.handler.BaseHandler; | ||
import org.hawkular.metrics.api.jaxrs.handler.StatusHandler; | ||
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/** | ||
* @author Stefan Negrea | ||
*/ | ||
@Provider | ||
public class TenantFilter implements ContainerRequestFilter { | ||
public static final String TENANT_HEADER_NAME = "Hawkular-Tenant"; | ||
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private static final String MISSING_TENANT_MSG; | ||
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static { | ||
MISSING_TENANT_MSG = "Tenant is not specified. Use '" | ||
+ TENANT_HEADER_NAME | ||
+ "' header."; | ||
} | ||
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@Override | ||
public void filter(ContainerRequestContext requestContext) throws IOException { | ||
UriInfo uriInfo = requestContext.getUriInfo(); | ||
String path = uriInfo.getPath(); | ||
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if (path.startsWith("/tenants") || path.startsWith("/db") || path.startsWith(StatusHandler.PATH) | ||
|| path.equals(BaseHandler.PATH)) { | ||
// Tenants, Influx and status handlers do not check the tenant header | ||
return; | ||
} | ||
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String tenant = requestContext.getHeaders().getFirst(TENANT_HEADER_NAME); | ||
if (tenant != null && !tenant.trim().isEmpty()) { | ||
// We're good already | ||
return; | ||
} | ||
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// Fail on missing tenant info | ||
Response response = Response.status(Status.BAD_REQUEST) | ||
.type(APPLICATION_JSON_TYPE) | ||
.entity(new ApiError(MISSING_TENANT_MSG)) | ||
.build(); | ||
requestContext.abortWith(response); | ||
} | ||
} |