01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: *
17: */
18:
19: package org.apache.tools.ant.taskdefs.optional.perforce;
20:
21: import org.apache.tools.ant.BuildException;
22: import org.apache.tools.ant.taskdefs.ExecuteStreamHandler;
23:
24: /** Interface for p4 job output stream handler. Classes implementing this interface
25: * can be called back by P4Base.execP4Command();
26: *
27: */
28: public interface P4Handler extends ExecuteStreamHandler {
29:
30: /**
31: * processing of one line of stdout or of stderr
32: * @param line a line of stdout or stderr that the implementation will process
33: * @throws BuildException at the discretion of the implementation.
34: */
35: void process(String line) throws BuildException;
36:
37: /**
38: * set any data to be written to P4's stdin
39: * @param line the text to write to P4's stdin
40: * @throws BuildException if the line cannot be processed.
41: */
42: void setOutput(String line) throws BuildException;
43: }
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