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/**
* 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.camel.model.rest;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import org.apache.camel.CamelContext;
import org.apache.camel.spi.Metadata;
import org.apache.camel.spi.RestConfiguration;
import org.apache.camel.util.CamelContextHelper;
/**
* To configure rest
*/
@Metadata(label = "rest")
@XmlRootElement(name = "restConfiguration")
@XmlAccessorType(XmlAccessType.FIELD)
public class RestConfigurationDefinition {
@XmlAttribute
private String component;
@XmlAttribute
private String scheme;
@XmlAttribute
private String host;
@XmlAttribute
private String port;
@XmlAttribute
private String contextPath;
@XmlAttribute
private RestHostNameResolver hostNameResolver;
@XmlAttribute @Metadata(defaultValue = "auto")
private RestBindingMode bindingMode;
@XmlAttribute
private Boolean skipBindingOnErrorCode;
@XmlAttribute
private Boolean enableCORS;
@XmlAttribute
private String jsonDataFormat;
@XmlAttribute
private String xmlDataFormat;
@XmlElement(name = "componentProperty")
private List componentProperties = new ArrayList();
@XmlElement(name = "endpointProperty")
private List endpointProperties = new ArrayList();
@XmlElement(name = "consumerProperty")
private List consumerProperties = new ArrayList();
@XmlElement(name = "dataFormatProperty")
private List dataFormatProperties = new ArrayList();
@XmlElement(name = "corsHeaders")
private List corsHeaders = new ArrayList();
public String getComponent() {
return component;
}
/**
* The Camel Rest component to use for the REST transport, such as restlet, spark-rest.
* If no component has been explicit configured, then Camel will lookup if there is a Camel component
* that integrates with the Rest DSL, or if a org.apache.camel.spi.RestConsumerFactory is registered in the registry.
* If either one is found, then that is being used.
*/
public void setComponent(String component) {
this.component = component;
}
public String getScheme() {
return scheme;
}
/**
* The scheme to use for exposing the REST service. Usually http or https is supported.
*
* The default value is http
*/
public void setScheme(String scheme) {
this.scheme = scheme;
}
public String getHost() {
return host;
}
/**
* The hostname to use for exposing the REST service.
*/
public void setHost(String host) {
this.host = host;
}
public String getPort() {
return port;
}
/**
* The port number to use for exposing the REST service.
* Notice if you use servlet component then the port number configured here does not apply,
* as the port number in use is the actual port number the servlet component is using.
* eg if using Apache Tomcat its the tomcat http port, if using Apache Karaf its the HTTP service in Karaf
* that uses port 8181 by default etc. Though in those situations setting the port number here,
* allows tooling and JMX to know the port number, so its recommended to set the port number
* to the number that the servlet engine uses.
*/
public void setPort(String port) {
this.port = port;
}
public String getContextPath() {
return contextPath;
}
/**
* Sets a leading context-path the REST services will be using.
* This can be used when using components such as SERVLET where the deployed web application is deployed using a context-path.
*/
public void setContextPath(String contextPath) {
this.contextPath = contextPath;
}
public RestHostNameResolver getHostNameResolver() {
return hostNameResolver;
}
/**
* If no hostname has been explicit configured, then this resolver is used to compute the hostname the REST service will be using.
*/
public void setHostNameResolver(RestHostNameResolver hostNameResolver) {
this.hostNameResolver = hostNameResolver;
}
public RestBindingMode getBindingMode() {
return bindingMode;
}
/**
* Sets the binding mode to use.
*
* The default value is auto
*/
public void setBindingMode(RestBindingMode bindingMode) {
this.bindingMode = bindingMode;
}
public Boolean getSkipBindingOnErrorCode() {
return skipBindingOnErrorCode;
}
/**
* Whether to skip binding on output if there is a custom HTTP error code header.
* This allows to build custom error messages that do not bind to json / xml etc, as success messages otherwise will do.
*/
public void setSkipBindingOnErrorCode(Boolean skipBindingOnErrorCode) {
this.skipBindingOnErrorCode = skipBindingOnErrorCode;
}
public Boolean getEnableCORS() {
return enableCORS;
}
/**
* Whether to enable CORS headers in the HTTP response.
*
* The default value is false.
*/
public void setEnableCORS(Boolean enableCORS) {
this.enableCORS = enableCORS;
}
public String getJsonDataFormat() {
return jsonDataFormat;
}
/**
* Name of specific json data format to use.
* By default json-jackson will be used.
* Important: This option is only for setting a custom name of the data format, not to refer to an existing data format instance.
*/
public void setJsonDataFormat(String jsonDataFormat) {
this.jsonDataFormat = jsonDataFormat;
}
public String getXmlDataFormat() {
return xmlDataFormat;
}
/**
* Name of specific XML data format to use.
* By default jaxb will be used.
* Important: This option is only for setting a custom name of the data format, not to refer to an existing data format instance.
*/
public void setXmlDataFormat(String xmlDataFormat) {
this.xmlDataFormat = xmlDataFormat;
}
public List getComponentProperties() {
return componentProperties;
}
/**
* Allows to configure as many additional properties for the rest component in use.
*/
public void setComponentProperties(List componentProperties) {
this.componentProperties = componentProperties;
}
public List getEndpointProperties() {
return endpointProperties;
}
/**
* Allows to configure as many additional properties for the rest endpoint in use.
*/
public void setEndpointProperties(List endpointProperties) {
this.endpointProperties = endpointProperties;
}
public List getConsumerProperties() {
return consumerProperties;
}
/**
* Allows to configure as many additional properties for the rest consumer in use.
*/
public void setConsumerProperties(List consumerProperties) {
this.consumerProperties = consumerProperties;
}
public List getDataFormatProperties() {
return dataFormatProperties;
}
/**
* Allows to configure as many additional properties for the data formats in use.
* For example set property prettyPrint to true to have json outputted in pretty mode.
* The properties can be prefixed to denote the option is only for either JSON or XML and for either the IN or the OUT.
* The prefixes are:
*
*
json.in.
*
json.out.
*
xml.in.
*
xml.out.
*
* For example a key with value "xml.out.mustBeJAXBElement" is only for the XML data format for the outgoing.
* A key without a prefix is a common key for all situations.
*/
public void setDataFormatProperties(List dataFormatProperties) {
this.dataFormatProperties = dataFormatProperties;
}
public List getCorsHeaders() {
return corsHeaders;
}
/**
* Allows to configure custom CORS headers.
*/
public void setCorsHeaders(List corsHeaders) {
this.corsHeaders = corsHeaders;
}
// Fluent API
//-------------------------------------------------------------------------
/**
* To use a specific Camel rest component
*/
public RestConfigurationDefinition component(String componentId) {
setComponent(componentId);
return this;
}
/**
* To use a specific scheme such as http/https
*/
public RestConfigurationDefinition scheme(String scheme) {
setScheme(scheme);
return this;
}
/**
* To define the host to use, such as 0.0.0.0 or localhost
*/
public RestConfigurationDefinition host(String host) {
setHost(host);
return this;
}
/**
* To specify the port number to use for the REST service
*/
public RestConfigurationDefinition port(int port) {
setPort("" + port);
return this;
}
/**
* To specify the port number to use for the REST service
*/
public RestConfigurationDefinition port(String port) {
setPort(port);
return this;
}
/**
* Sets a leading context-path the REST services will be using.
*
* This can be used when using components such as camel-servlet where the deployed web application
* is deployed using a context-path.
*/
public RestConfigurationDefinition contextPath(String contextPath) {
setContextPath(contextPath);
return this;
}
/**
* To specify the hostname resolver
*/
public RestConfigurationDefinition hostNameResolver(RestHostNameResolver hostNameResolver) {
setHostNameResolver(hostNameResolver);
return this;
}
/**
* To specify the binding mode
*/
public RestConfigurationDefinition bindingMode(RestBindingMode bindingMode) {
setBindingMode(bindingMode);
return this;
}
/**
* To specify whether to skip binding output if there is a custom HTTP error code
*/
public RestConfigurationDefinition skipBindingOnErrorCode(boolean skipBindingOnErrorCode) {
setSkipBindingOnErrorCode(skipBindingOnErrorCode);
return this;
}
/**
* To specify whether to enable CORS which means Camel will automatic include CORS in the HTTP headers in the response.
*/
public RestConfigurationDefinition enableCORS(boolean enableCORS) {
setEnableCORS(enableCORS);
return this;
}
/**
* To use a specific json data format
*
* Important: This option is only for setting a custom name of the data format, not to refer to an existing data format instance.
*
* @param name name of the data format to {@link org.apache.camel.CamelContext#resolveDataFormat(java.lang.String) resolve}
*/
public RestConfigurationDefinition jsonDataFormat(String name) {
setJsonDataFormat(name);
return this;
}
/**
* To use a specific XML data format
*
* Important: This option is only for setting a custom name of the data format, not to refer to an existing data format instance.
*
* @param name name of the data format to {@link org.apache.camel.CamelContext#resolveDataFormat(java.lang.String) resolve}
*/
public RestConfigurationDefinition xmlDataFormat(String name) {
setXmlDataFormat(name);
return this;
}
/**
* For additional configuration options on component level
*/
public RestConfigurationDefinition componentProperty(String key, String value) {
RestPropertyDefinition prop = new RestPropertyDefinition();
prop.setKey(key);
prop.setValue(value);
getComponentProperties().add(prop);
return this;
}
/**
* For additional configuration options on endpoint level
*/
public RestConfigurationDefinition endpointProperty(String key, String value) {
RestPropertyDefinition prop = new RestPropertyDefinition();
prop.setKey(key);
prop.setValue(value);
getEndpointProperties().add(prop);
return this;
}
/**
* For additional configuration options on consumer level
*/
public RestConfigurationDefinition consumerProperty(String key, String value) {
RestPropertyDefinition prop = new RestPropertyDefinition();
prop.setKey(key);
prop.setValue(value);
getConsumerProperties().add(prop);
return this;
}
/**
* For additional configuration options on data format level
*/
public RestConfigurationDefinition dataFormatProperty(String key, String value) {
RestPropertyDefinition prop = new RestPropertyDefinition();
prop.setKey(key);
prop.setValue(value);
getDataFormatProperties().add(prop);
return this;
}
/**
* For configuring CORS headers
*/
public RestConfigurationDefinition corsHeaderProperty(String key, String value) {
RestPropertyDefinition prop = new RestPropertyDefinition();
prop.setKey(key);
prop.setValue(value);
getCorsHeaders().add(prop);
return this;
}
// Implementation
//-------------------------------------------------------------------------
/**
* Creates a {@link org.apache.camel.spi.RestConfiguration} instance based on the definition
*
* @param context the camel context
* @return the configuration
* @throws Exception is thrown if error creating the configuration
*/
public RestConfiguration asRestConfiguration(CamelContext context) throws Exception {
RestConfiguration answer = new RestConfiguration();
if (component != null) {
answer.setComponent(CamelContextHelper.parseText(context, component));
}
if (scheme != null) {
answer.setScheme(CamelContextHelper.parseText(context, scheme));
}
if (host != null) {
answer.setHost(CamelContextHelper.parseText(context, host));
}
if (port != null) {
answer.setPort(CamelContextHelper.parseInteger(context, port));
}
if (contextPath != null) {
answer.setContextPath(CamelContextHelper.parseText(context, contextPath));
}
if (hostNameResolver != null) {
answer.setRestHostNameResolver(hostNameResolver.name());
}
if (bindingMode != null) {
answer.setBindingMode(bindingMode.name());
}
if (skipBindingOnErrorCode != null) {
answer.setSkipBindingOnErrorCode(skipBindingOnErrorCode);
}
if (enableCORS != null) {
answer.setEnableCORS(enableCORS);
}
if (jsonDataFormat != null) {
answer.setJsonDataFormat(jsonDataFormat);
}
if (xmlDataFormat != null) {
answer.setXmlDataFormat(xmlDataFormat);
}
if (!componentProperties.isEmpty()) {
Map props = new HashMap();
for (RestPropertyDefinition prop : componentProperties) {
String key = prop.getKey();
String value = CamelContextHelper.parseText(context, prop.getValue());
props.put(key, value);
}
answer.setComponentProperties(props);
}
if (!endpointProperties.isEmpty()) {
Map props = new HashMap();
for (RestPropertyDefinition prop : endpointProperties) {
String key = prop.getKey();
String value = CamelContextHelper.parseText(context, prop.getValue());
props.put(key, value);
}
answer.setEndpointProperties(props);
}
if (!consumerProperties.isEmpty()) {
Map props = new HashMap();
for (RestPropertyDefinition prop : consumerProperties) {
String key = prop.getKey();
String value = CamelContextHelper.parseText(context, prop.getValue());
props.put(key, value);
}
answer.setConsumerProperties(props);
}
if (!dataFormatProperties.isEmpty()) {
Map props = new HashMap();
for (RestPropertyDefinition prop : dataFormatProperties) {
String key = prop.getKey();
String value = CamelContextHelper.parseText(context, prop.getValue());
props.put(key, value);
}
answer.setDataFormatProperties(props);
}
if (!corsHeaders.isEmpty()) {
Map props = new HashMap();
for (RestPropertyDefinition prop : corsHeaders) {
String key = prop.getKey();
String value = CamelContextHelper.parseText(context, prop.getValue());
props.put(key, value);
}
answer.setCorsHeaders(props);
}
return answer;
}
}