| /* |
| * |
| * 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.qpid.proton.engine.impl; |
| |
| import org.apache.qpid.proton.amqp.transport.ErrorCondition; |
| import org.apache.qpid.proton.engine.EndpointState; |
| import org.apache.qpid.proton.engine.Event; |
| import org.apache.qpid.proton.engine.ProtonJEndpoint; |
| import org.apache.qpid.proton.engine.Record; |
| |
| public abstract class EndpointImpl implements ProtonJEndpoint |
| { |
| private EndpointState _localState = EndpointState.UNINITIALIZED; |
| private EndpointState _remoteState = EndpointState.UNINITIALIZED; |
| private ErrorCondition _localError = new ErrorCondition(); |
| private ErrorCondition _remoteError = new ErrorCondition(); |
| private boolean _modified; |
| private EndpointImpl _transportNext; |
| private EndpointImpl _transportPrev; |
| private Object _context; |
| private Record _attachments = new RecordImpl(); |
| |
| private int refcount = 1; |
| boolean freed = false; |
| |
| void incref() { |
| refcount++; |
| } |
| |
| void decref() { |
| refcount--; |
| if (refcount == 0) { |
| postFinal(); |
| } else if (refcount < 0) { |
| throw new IllegalStateException(); |
| } |
| } |
| |
| abstract void postFinal(); |
| |
| abstract void localOpen(); |
| |
| abstract void localClose(); |
| |
| @Override |
| public void open() |
| { |
| if (getLocalState() != EndpointState.ACTIVE) |
| { |
| _localState = EndpointState.ACTIVE; |
| localOpen(); |
| modified(); |
| } |
| } |
| |
| @Override |
| public void close() |
| { |
| if (getLocalState() != EndpointState.CLOSED) |
| { |
| _localState = EndpointState.CLOSED; |
| localClose(); |
| modified(); |
| } |
| } |
| |
| @Override |
| public EndpointState getLocalState() |
| { |
| return _localState; |
| } |
| |
| @Override |
| public EndpointState getRemoteState() |
| { |
| return _remoteState; |
| } |
| |
| @Override |
| public ErrorCondition getCondition() |
| { |
| return _localError; |
| } |
| |
| @Override |
| public void setCondition(ErrorCondition condition) |
| { |
| if(condition != null) |
| { |
| _localError.copyFrom(condition); |
| } |
| else |
| { |
| _localError.clear(); |
| } |
| } |
| |
| @Override |
| public ErrorCondition getRemoteCondition() |
| { |
| return _remoteError; |
| } |
| |
| void setLocalState(EndpointState localState) |
| { |
| _localState = localState; |
| } |
| |
| void setRemoteState(EndpointState remoteState) |
| { |
| // TODO - check state change legal |
| _remoteState = remoteState; |
| } |
| |
| void modified() |
| { |
| modified(true); |
| } |
| |
| void modified(boolean emit) |
| { |
| if(!_modified) |
| { |
| _modified = true; |
| getConnectionImpl().addModified(this); |
| } |
| |
| if (emit) { |
| ConnectionImpl conn = getConnectionImpl(); |
| TransportImpl trans = conn.getTransport(); |
| if (trans != null) { |
| conn.put(Event.Type.TRANSPORT, trans); |
| } |
| } |
| } |
| |
| protected abstract ConnectionImpl getConnectionImpl(); |
| |
| void clearModified() |
| { |
| if(_modified) |
| { |
| _modified = false; |
| getConnectionImpl().removeModified(this); |
| } |
| } |
| |
| boolean isModified() |
| { |
| return _modified; |
| } |
| |
| EndpointImpl transportNext() |
| { |
| return _transportNext; |
| } |
| |
| EndpointImpl transportPrev() |
| { |
| return _transportPrev; |
| } |
| |
| abstract void doFree(); |
| |
| @Override |
| final public void free() |
| { |
| if (freed) return; |
| freed = true; |
| |
| doFree(); |
| decref(); |
| } |
| |
| void setTransportNext(EndpointImpl transportNext) |
| { |
| _transportNext = transportNext; |
| } |
| |
| void setTransportPrev(EndpointImpl transportPrevious) |
| { |
| _transportPrev = transportPrevious; |
| } |
| |
| @Override |
| public Object getContext() |
| { |
| return _context; |
| } |
| |
| @Override |
| public void setContext(Object context) |
| { |
| _context = context; |
| } |
| |
| @Override |
| public Record attachments() |
| { |
| return _attachments; |
| } |
| |
| } |