01: /*
02: * Copyright 2005-2006 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * by Sun in the LICENSE file that accompanied this code.
10: *
11: * This code is distributed in the hope that it will be useful, but WITHOUT
12: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14: * version 2 for more details (a copy is included in the LICENSE file that
15: * accompanied this code).
16: *
17: * You should have received a copy of the GNU General Public License version
18: * 2 along with this work; if not, write to the Free Software Foundation,
19: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20: *
21: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22: * CA 95054 USA or visit www.sun.com if you need additional information or
23: * have any questions.
24: */
25:
26: package javax.tools;
27:
28: import java.util.Set;
29: import java.io.InputStream;
30: import java.io.OutputStream;
31: import javax.lang.model.SourceVersion;
32:
33: /**
34: * Common interface for tools that can be invoked from a program.
35: * A tool is traditionally a command line program such as a compiler.
36: * The set of tools available with a platform is defined by the
37: * vendor.
38: *
39: * <p>Tools can be located using {@link
40: * java.util.ServiceLoader#load(Class)}.
41: *
42: * @author Neal M Gafter
43: * @author Peter von der Ahé
44: * @author Jonathan Gibbons
45: * @since 1.6
46: */
47: public interface Tool {
48:
49: /**
50: * Run the tool with the given I/O channels and arguments. By
51: * convention a tool returns 0 for success and nonzero for errors.
52: * Any diagnostics generated will be written to either {@code out}
53: * or {@code err} in some unspecified format.
54: *
55: * @param in "standard" input; use System.in if null
56: * @param out "standard" output; use System.out if null
57: * @param err "standard" error; use System.err if null
58: * @param arguments arguments to pass to the tool
59: * @return 0 for success; nonzero otherwise
60: * @throws NullPointerException if the array of arguments contains
61: * any {@code null} elements.
62: */
63: int run(InputStream in, OutputStream out, OutputStream err,
64: String... arguments);
65:
66: /**
67: * Gets the source versions of the Java™ programming language
68: * supported by this tool.
69: * @return a set of supported source versions
70: */
71: Set<SourceVersion> getSourceVersions();
72:
73: }
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