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Adds initial version of CLDR reader

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This commit is contained in:
konsoletyper 2014-05-13 18:31:03 +04:00
parent 2308d54099
commit 11ade7875a
3 changed files with 165 additions and 0 deletions
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5
teavm-classlib/pom.xml
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@ -35,6 +35,11 @@
<artifactId>teavm-core</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.2.4</version>
</dependency>
</dependencies>
<name>TeaVM JCL</name>

7
teavm-classlib/src/main/java/org/teavm/classlib/impl/JCLPlugin.java
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@ -15,6 +15,8 @@
*/
package org.teavm.classlib.impl;
import org.teavm.classlib.java.util.LocaleSettingsNativeGenerator;
import org.teavm.javascript.ni.Generator;
import org.teavm.model.MethodDescriptor;
import org.teavm.model.MethodReference;
import org.teavm.model.ValueType;
@ -40,5 +42,10 @@ public class JCLPlugin implements TeaVMPlugin {
host.add(loadServicesMethod, serviceLoaderSupp);
JavacSupport javacSupport = new JavacSupport();
host.add(javacSupport);
Generator localeGen = new LocaleSettingsNativeGenerator(host.getClassLoader(), host.getProperties());
host.add(new MethodReference("java.util.Locale", "readCLDR", ValueType.VOID), localeGen);
host.add(new MethodReference("java.util.Locale", "getDefaultLocale", ValueType.object("java.lang.String")),
localeGen);
}
}

153
teavm-classlib/src/main/java/org/teavm/classlib/java/util/LocaleSettingsNativeGenerator.java Normal file
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@ -0,0 +1,153 @@
/*
* Copyright 2014 Alexey Andreev.
*
* 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.teavm.classlib.java.util;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.*;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import org.teavm.codegen.SourceWriter;
import org.teavm.javascript.Renderer;
import org.teavm.javascript.ni.Generator;
import org.teavm.javascript.ni.GeneratorContext;
import org.teavm.model.MethodReference;
import com.google.gson.*;
/**
*
* @author Alexey Andreev
*/
public class LocaleSettingsNativeGenerator implements Generator {
private ClassLoader classLoader;
private Properties properties;
private Map<String, LocaleInfo> knownLocales = new LinkedHashMap<>();
private Set<String> availableLocales = new LinkedHashSet<>();
private Set<String> availableLanguages = new LinkedHashSet<>();
private Set<String> availableCountries = new LinkedHashSet<>();
public LocaleSettingsNativeGenerator(ClassLoader classLoader, Properties properties) {
this.classLoader = classLoader;
this.properties = properties;
findAvailableLocales();
readCLDR();
}
private void findAvailableLocales() {
String availableLocalesString = properties.getProperty("java.util.Locale.available", "en_EN").trim();
for (String locale : Arrays.asList(availableLocalesString.split(" *, +"))) {
int countryIndex = locale.indexOf('_');
if (countryIndex > 0) {
String language = locale.substring(0, countryIndex);
String country = locale.substring(countryIndex + 1);
availableLocales.add(language + "-" + country);
availableLocales.add(language);
availableLanguages.add(language);
availableCountries.add(country);
} else {
availableLocales.add(locale);
availableLanguages.add(locale);
}
}
}
private void readCLDR() {
try (ZipInputStream input = new ZipInputStream(classLoader.getResourceAsStream(
"/org/teavm/classlib/impl/unicode/cldr-json.zip"))) {
while (true) {
ZipEntry entry = input.getNextEntry();
if (entry == null) {
break;
}
if (!entry.getName().endsWith(".json")) {
continue;
}
int objectIndex = entry.getName().lastIndexOf('/');
String objectName = entry.getName().substring(objectIndex + 1);
String localeName = entry.getName().substring(0, objectIndex);
if (localeName.startsWith("/")) {
localeName = localeName.substring(1);
}
LocaleInfo localeInfo = knownLocales.get(localeName);
if (localeInfo == null) {
localeInfo = new LocaleInfo();
knownLocales.put(localeName, localeInfo);
}
switch (objectName) {
case "languages.json":
readLanguages(localeName, localeInfo, input);
break;
case "territories.json":
readCountries(localeName, localeInfo, input);
break;
}
}
} catch (IOException e) {
throw new RuntimeException("Error reading CLDR file", e);
}
}
private void readLanguages(String localeCode, LocaleInfo locale, InputStream input) {
JsonObject root = (JsonObject)new JsonParser().parse(new InputStreamReader(input));
JsonObject languagesJson = root.get("main").getAsJsonObject().get(localeCode).getAsJsonObject()
.get("localeDisplayNames").getAsJsonObject().get("languages").getAsJsonObject();
for (Map.Entry<String, JsonElement> property : languagesJson.entrySet()) {
String language = property.getKey();
if (availableLanguages.contains(language)) {
locale.languages.put(language, property.getValue().getAsString());
}
}
}
private void readCountries(String localeCode, LocaleInfo locale, InputStream input) {
JsonObject root = (JsonObject)new JsonParser().parse(new InputStreamReader(input));
JsonObject languagesJson = root.get("main").getAsJsonObject().get(localeCode).getAsJsonObject()
.get("localeDisplayNames").getAsJsonObject().get("territories").getAsJsonObject();
for (Map.Entry<String, JsonElement> property : languagesJson.entrySet()) {
String language = property.getKey();
if (availableCountries.contains(language)) {
locale.territories.put(language, property.getValue().getAsString());
}
}
}
@Override
public void generate(GeneratorContext context, SourceWriter writer, MethodReference methodRef) throws IOException {
switch (methodRef.getName()) {
case "readCLDR":
generateReadCLDR(writer);
break;
case "getDefaultLocale":
generateGetDefaultLocale(writer);
break;
}
}
private void generateReadCLDR(SourceWriter writer) throws IOException {
writer.appendClass("java.util.Locale").append(".$CLDR = {");
}
private void generateGetDefaultLocale(SourceWriter writer) throws IOException {
String locale = properties.getProperty("java.util.Locale.default", "en_EN");
writer.append("return $rt_str(\"").append(Renderer.escapeString(locale)).append("\");").softNewLine();
}
static class LocaleInfo {
Map<String, String> languages = new LinkedHashMap<>();
Map<String, String> territories = new LinkedHashMap<>();
}
}