/*
* Copyright 2009 the original author or authors.
*
* Licensed 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.gradle.configuration;
import com.google.common.base.Charsets;
import com.google.common.base.Splitter;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Lists;
import com.google.common.io.LineProcessor;
import com.google.common.io.Resources;
import org.apache.commons.lang.StringUtils;
import org.gradle.api.UncheckedIOException;
import java.io.IOException;
import java.net.URL;
import java.util.List;
import java.util.Map;
public class DefaultImportsReader implements ImportsReader {
private static final String RESOURCE = "/default-imports.txt";
private static final String MAPPING_RESOURCE = "/api-mapping.txt";
private final String[] importPackages;
private final Map<String, List<String>> simpleNameToFQCN;
public DefaultImportsReader() {
try {
URL url = getClass().getResource(RESOURCE);
if (url == null) {
throw new IllegalStateException("Could not load default imports resource: " + RESOURCE);
}
this.importPackages = Resources.asCharSource(url, Charsets.UTF_8).readLines(new LineProcessor<String[]>() {
private final List<String> packages = Lists.newLinkedList();
@Override
public boolean processLine(@SuppressWarnings("NullableProblems") String line) throws IOException {
packages.add(line.substring(7, line.length() - 2));
return true;
}
@Override
public String[] getResult() {
return packages.toArray(new String[0]);
}
});
url = getClass().getResource(MAPPING_RESOURCE);
if (url == null) {
throw new IllegalStateException("Could not load default imports resource: " + MAPPING_RESOURCE);
}
this.simpleNameToFQCN = Resources.asCharSource(url, Charsets.UTF_8).readLines(new LineProcessor<Map<String, List<String>>>() {
private final ImmutableMap.Builder<String, List<String>> builder = ImmutableMap.builder();
@Override
public boolean processLine(String line) throws IOException {
boolean process = !StringUtils.isEmpty(line);
if (process) {
String[] split = line.split(":");
if (split.length==2) {
String simpleName = split[0];
List<String> fqcns = Splitter.on(';').omitEmptyStrings().splitToList(split[1]);
builder.put(simpleName, fqcns);
} else {
process = false;
}
}
return process;
}
@Override
public Map<String, List<String>> getResult() {
return builder.build();
}
});
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
public String[] getImportPackages() {
return importPackages;
}
@Override
public Map<String, List<String>> getSimpleNameToFullClassNamesMapping() {
return simpleNameToFQCN;
}
}