1 | /*
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2 | * Copyright 2003-2004 The Apache Software Foundation
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3 | *
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4 | * Licensed under the Apache License, Version 2.0 (the "License");
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5 | * you may not use this file except in compliance with the License.
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6 | * You may obtain a copy of the License at
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7 | *
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8 | * http://www.apache.org/licenses/LICENSE-2.0
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9 | *
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10 | * Unless required by applicable law or agreed to in writing, software
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11 | * distributed under the License is distributed on an "AS IS" BASIS,
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 | * See the License for the specific language governing permissions and
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14 | * limitations under the License.
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15 | *
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16 | */
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17 |
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18 | package org.apache.tools.ant;
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19 |
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20 | import java.io.IOException;
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21 | import java.io.InputStream;
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22 |
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23 | /**
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24 | *
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25 | * Passes input requests to the project object for demuxing into
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26 | * individual tasks and threads.
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27 | *
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28 | * @since Ant 1.6
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29 | */
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30 | public class DemuxInputStream extends InputStream {
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31 |
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32 | /**
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33 | * The project to from which to get input.
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34 | */
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35 | private Project project;
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36 |
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37 | /**
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38 | * Create a DemuxInputStream for the given project
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39 | *
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40 | * @param project the project instance
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41 | */
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42 | public DemuxInputStream(Project project) {
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43 | this.project = project;
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44 | }
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45 |
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46 | public int read() throws IOException {
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47 | byte[] buffer = new byte[1];
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48 | if (project.demuxInput(buffer, 0, 1) == -1) {
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49 | return -1;
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50 | }
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51 | return buffer[0];
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52 | }
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53 |
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54 |
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55 | public int read(byte[] buffer, int offset, int length) throws IOException {
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56 | return project.demuxInput(buffer, offset, length);
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57 | }
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58 |
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59 | }
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