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package org.apache.camel.impl; |
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import org.apache.camel.CamelContext; |
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import org.apache.camel.Exchange; |
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import org.apache.camel.Message; |
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import org.apache.camel.util.UuidGenerator; |
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import java.util.HashMap; |
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import java.util.Map; |
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public class DefaultExchange implements Exchange { |
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private static final UuidGenerator defaultIdGenerator = new UuidGenerator(); |
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protected final CamelContext context; |
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private Map<String, Object> headers; |
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private Message in; |
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private Message out; |
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private Message fault; |
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private Throwable exception; |
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private String exchangeId = DefaultExchange.defaultIdGenerator.generateId(); |
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public DefaultExchange(CamelContext context) { |
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this.context = context; |
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} |
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@Override |
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public String toString() { |
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return "Exchange[" + in + "]"; |
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} |
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public Exchange copy() { |
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Exchange exchange = newInstance(); |
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exchange.copyFrom(this); |
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return exchange; |
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} |
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public void copyFrom(Exchange exchange) { |
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if (exchange == this) { |
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return; |
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} |
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setHeaders(safeCopy(exchange.getProperties())); |
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setIn(safeCopy(exchange.getIn())); |
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setOut(safeCopy(exchange.getOut())); |
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setFault(safeCopy(exchange.getFault())); |
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setException(exchange.getException()); |
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} |
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static private Map<String, Object> safeCopy(Map<String, Object> properties) { |
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if(properties == null) |
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return null; |
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return new HashMap<String, Object>(properties); |
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} |
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static private Message safeCopy(Message message) { |
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if( message == null) |
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return null; |
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return message.copy(); |
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} |
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public Exchange newInstance() { |
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return new DefaultExchange(context); |
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} |
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public CamelContext getContext() { |
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return context; |
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} |
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public Object getProperty(String name) { |
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if (headers != null) { |
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return headers.get(name); |
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} |
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return null; |
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} |
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public <T> T getProperty(String name, Class<T> type) { |
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Object value = getProperty(name); |
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return getContext().getTypeConverter().convertTo(type, value); |
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} |
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public void setProperty(String name, Object value) { |
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getProperties().put(name, value); |
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} |
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public Map<String, Object> getProperties() { |
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if (headers == null) { |
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headers = new HashMap<String, Object>(); |
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} |
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return headers; |
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} |
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public void setHeaders(Map<String, Object> headers) { |
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this.headers = headers; |
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} |
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public Message getIn() { |
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if (in == null) { |
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in = createInMessage(); |
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configureMessage(in); |
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} |
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return in; |
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} |
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public void setIn(Message in) { |
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this.in = in; |
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configureMessage(in); |
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} |
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public Message getOut() { |
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return getOut(true); |
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} |
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public Message getOut(boolean lazyCreate) { |
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if (out == null && lazyCreate) { |
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out = createOutMessage(); |
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configureMessage(out); |
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} |
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return out; |
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} |
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public void setOut(Message out) { |
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this.out = out; |
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configureMessage(out); |
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} |
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public Throwable getException() { |
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return exception; |
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} |
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public void setException(Throwable exception) { |
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this.exception = exception; |
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} |
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public Message getFault() { |
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return fault; |
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} |
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public void setFault(Message fault) { |
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this.fault = fault; |
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configureMessage(fault); |
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} |
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public String getExchangeId() { |
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return exchangeId; |
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} |
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public void setExchangeId(String id) { |
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this.exchangeId = id; |
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} |
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protected Message createInMessage() { |
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return new DefaultMessage(); |
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} |
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protected Message createOutMessage() { |
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return new DefaultMessage(); |
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} |
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protected void configureMessage(Message message) { |
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if (message instanceof MessageSupport) { |
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MessageSupport messageSupport = (MessageSupport) message; |
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messageSupport.setExchange(this); |
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} |
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} |
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} |