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package org.mule.module.jersey; |
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import org.mule.api.MuleEvent; |
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import org.mule.api.MuleMessage; |
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import org.mule.api.component.JavaComponent; |
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import org.mule.api.endpoint.EndpointURI; |
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import org.mule.api.lifecycle.InitialisationException; |
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import org.mule.api.processor.MessageProcessor; |
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import org.mule.api.transformer.TransformerException; |
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import org.mule.component.AbstractComponent; |
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import org.mule.transport.http.HttpConnector; |
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import com.sun.jersey.api.core.DefaultResourceConfig; |
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import com.sun.jersey.core.header.InBoundHeaders; |
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import com.sun.jersey.core.spi.component.ioc.IoCComponentProviderFactory; |
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import com.sun.jersey.spi.container.ContainerRequest; |
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import com.sun.jersey.spi.container.ContainerResponse; |
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import com.sun.jersey.spi.container.WebApplication; |
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import com.sun.jersey.spi.container.WebApplicationFactory; |
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import java.io.InputStream; |
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import java.net.URI; |
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import java.net.URISyntaxException; |
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import java.util.ArrayList; |
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import java.util.HashSet; |
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import java.util.List; |
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import java.util.Set; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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|
47 | 0 | public class JerseyResourcesComponent extends AbstractComponent |
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{ |
49 | 0 | public static String JERSEY_RESPONSE = "jersey_response"; |
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|
51 | 0 | protected final Log logger = LogFactory.getLog(this.getClass()); |
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private List<JavaComponent> components; |
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private WebApplication application; |
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@Override |
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protected void doInitialise() throws InitialisationException |
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{ |
60 | 0 | super.doInitialise(); |
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|
62 | 0 | final Set<Class<?>> resources = new HashSet<Class<?>>(); |
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|
64 | 0 | if (components == null) |
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{ |
66 | 0 | throw new IllegalStateException("There must be at least one component in the Jersey resources."); |
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} |
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|
70 | 0 | for (JavaComponent component : components) |
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{ |
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Class<?> c; |
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try |
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{ |
75 | 0 | c = component.getObjectType(); |
76 | 0 | resources.add(c); |
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} |
78 | 0 | catch (Exception e) |
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{ |
80 | 0 | throw new InitialisationException(e, this); |
81 | 0 | } |
82 | 0 | } |
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|
84 | 0 | DefaultResourceConfig resourceConfig = createConfiguration(resources); |
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|
86 | 0 | application = WebApplicationFactory.createWebApplication(); |
87 | 0 | application.initiate(resourceConfig, getComponentProvider()); |
88 | 0 | } |
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protected DefaultResourceConfig createConfiguration(final Set<Class<?>> resources) |
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{ |
92 | 0 | return new DefaultResourceConfig(resources); |
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} |
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@Override |
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protected Object doInvoke(MuleEvent event) throws Exception |
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{ |
98 | 0 | MuleMessage message = event.getMessage(); |
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|
100 | 0 | String path = (String) message.getInboundProperty(HttpConnector.HTTP_REQUEST_PROPERTY); |
101 | 0 | String contextPath = (String) message.getInboundProperty(HttpConnector.HTTP_CONTEXT_PATH_PROPERTY); |
102 | 0 | String query = null; |
103 | 0 | int queryIdx = path.indexOf('?'); |
104 | 0 | if (queryIdx != -1) |
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{ |
106 | 0 | query = path.substring(queryIdx + 1); |
107 | 0 | path = path.substring(0, queryIdx); |
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} |
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|
110 | 0 | EndpointURI endpointUri = event.getEndpoint().getEndpointURI(); |
111 | 0 | String host = message.getInboundProperty("Host", endpointUri.getHost()); |
112 | 0 | String method = message.getInboundProperty(HttpConnector.HTTP_METHOD_PROPERTY); |
113 | 0 | InBoundHeaders headers = new InBoundHeaders(); |
114 | 0 | for (Object prop : message.getInboundPropertyNames()) |
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{ |
116 | 0 | Object property = message.getInboundProperty(prop.toString()); |
117 | 0 | if (property != null) |
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{ |
119 | 0 | headers.add(prop.toString(), property.toString()); |
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} |
121 | 0 | } |
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|
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String scheme; |
124 | 0 | if ("servlet".equals(endpointUri.getScheme())) |
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{ |
126 | 0 | scheme = "http"; |
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} |
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else |
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{ |
130 | 0 | scheme = endpointUri.getScheme(); |
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} |
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|
133 | 0 | URI baseUri = getBaseUri(endpointUri, scheme, host, contextPath); |
134 | 0 | URI completeUri = getCompleteUri(endpointUri, scheme, host, path, query); |
135 | 0 | ContainerRequest req = new ContainerRequest(application, method, baseUri, completeUri, headers, |
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getInputStream(message)); |
137 | 0 | if (logger.isDebugEnabled()) |
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{ |
139 | 0 | logger.debug("Base URI: " + baseUri); |
140 | 0 | logger.debug("Complete URI: " + completeUri); |
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} |
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|
143 | 0 | MuleResponseWriter writer = new MuleResponseWriter(message); |
144 | 0 | ContainerResponse res = new ContainerResponse(application, req, writer); |
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|
146 | 0 | application.handleRequest(req, res); |
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|
148 | 0 | return writer.getResponse(); |
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} |
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|
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protected static InputStream getInputStream(MuleMessage message) throws TransformerException |
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{ |
153 | 0 | return message.getPayload(InputStream.class); |
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} |
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protected IoCComponentProviderFactory getComponentProvider() |
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{ |
158 | 0 | return new MuleComponentProviderFactory(muleContext, components); |
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} |
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|
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protected static URI getCompleteUri(EndpointURI endpointUri, |
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String scheme, |
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String host, |
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String path, |
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String query) throws URISyntaxException |
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{ |
167 | 0 | String uri = scheme + "://" + host + path; |
168 | 0 | if (query != null) |
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{ |
170 | 0 | uri += "?" + query; |
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} |
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|
173 | 0 | return new URI(uri); |
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} |
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|
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protected static URI getBaseUri(EndpointURI endpointUri, String scheme, String host, String contextPath) |
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throws URISyntaxException |
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{ |
179 | 0 | if (!contextPath.endsWith("/")) |
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{ |
181 | 0 | contextPath += "/"; |
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} |
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|
184 | 0 | return new URI(scheme + "://" + host + contextPath); |
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} |
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public List<JavaComponent> getComponents() |
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{ |
189 | 0 | return components; |
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} |
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public void setComponents(List<JavaComponent> components) |
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{ |
194 | 0 | this.components = components; |
195 | 0 | } |
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public void setMessageProcessors(List<MessageProcessor> messageProcessors) |
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{ |
199 | 0 | List<JavaComponent> components = new ArrayList<JavaComponent>(); |
200 | 0 | for (MessageProcessor mp : messageProcessors) |
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{ |
202 | 0 | if (mp instanceof JavaComponent) |
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{ |
204 | 0 | components.add((JavaComponent)mp); |
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} |
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else |
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{ |
208 | 0 | throw new IllegalStateException("Only JavaComponents are allowed as MessageProcessors. Type " + mp.getClass().getName() + " is not allowed."); |
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} |
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} |
211 | 0 | setComponents(components); |
212 | 0 | } |
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} |