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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package jdk.incubator.jpackage.internal;
import java.io.*;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardCopyOption;
import java.text.MessageFormat;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import static jdk.incubator.jpackage.internal.StandardBundlerParam.RESOURCE_DIR;
import jdk.incubator.jpackage.internal.resources.ResourceLocator;
/**
* Resource file that may have the default value supplied by jpackage. It can be
* overridden by a file from resource directory set with {@code --resource-dir}
* jpackage parameter.
*
* Resource has default name and public name. Default name is the name of a file
* in {@code jdk.incubator.jpackage.internal.resources} package that provides the default
* value of the resource.
*
* Public name is a path relative to resource directory to a file with custom
* value of the resource.
*
* Use #setPublicName to set the public name.
*
* If #setPublicName was not called, name of file passed in #saveToFile function
* will be used as a public name.
*
* Use #setExternal to set arbitrary file as a source of resource. If non-null
* value was passed in #setExternal call that value will be used as a path to file
* to copy in the destination file passed in #saveToFile function call.
*/
final class OverridableResource {
OverridableResource(String defaultName) {
this.defaultName = defaultName;
}
OverridableResource setSubstitutionData(Map<String, String> v) {
if (v != null) {
// Disconnect `v`
substitutionData = new HashMap<>(v);
} else {
substitutionData = null;
}
return this;
}
OverridableResource setCategory(String v) {
category = v;
return this;
}
OverridableResource setResourceDir(Path v) {
resourceDir = v;
return this;
}
OverridableResource setResourceDir(File v) {
return setResourceDir(toPath(v));
}
/**
* Set name of file to look for in resource dir.
*
* @return this
*/
OverridableResource setPublicName(Path v) {
publicName = v;
return this;
}
OverridableResource setPublicName(String v) {
return setPublicName(Path.of(v));
}
OverridableResource setExternal(Path v) {
externalPath = v;
return this;
}
OverridableResource setExternal(File v) {
return setExternal(toPath(v));
}
void saveToFile(Path dest) throws IOException {
final String printableCategory;
if (category != null) {
printableCategory = String.format("[%s]", category);
} else {
printableCategory = "";
}
if (externalPath != null && externalPath.toFile().exists()) {
Log.verbose(MessageFormat.format(I18N.getString(
"message.using-custom-resource-from-file"),
printableCategory,
externalPath.toAbsolutePath().normalize()));
try (InputStream in = Files.newInputStream(externalPath)) {
processResourceStream(in, dest);
}
return;
}
final Path resourceName = Optional.ofNullable(publicName).orElse(
dest.getFileName());
if (resourceDir != null) {
final Path customResource = resourceDir.resolve(resourceName);
if (customResource.toFile().exists()) {
Log.verbose(MessageFormat.format(I18N.getString(
"message.using-custom-resource"), printableCategory,
resourceDir.normalize().toAbsolutePath().relativize(
customResource.normalize().toAbsolutePath())));
try (InputStream in = Files.newInputStream(customResource)) {
processResourceStream(in, dest);
}
return;
}
}
if (defaultName != null) {
Log.verbose(MessageFormat.format(
I18N.getString("message.using-default-resource"),
defaultName, printableCategory, resourceName));
try (InputStream in = readDefault(defaultName)) {
processResourceStream(in, dest);
}
}
}
void saveToFile(File dest) throws IOException {
saveToFile(dest.toPath());
}
static InputStream readDefault(String resourceName) {
return ResourceLocator.class.getResourceAsStream(resourceName);
}
static OverridableResource createResource(String defaultName,
Map<String, ? super Object> params) {
return new OverridableResource(defaultName).setResourceDir(
RESOURCE_DIR.fetchFrom(params));
}
private static List<String> substitute(Stream<String> lines,
Map<String, String> substitutionData) {
return lines.map(line -> {
String result = line;
for (var entry : substitutionData.entrySet()) {
result = result.replace(entry.getKey(), Optional.ofNullable(
entry.getValue()).orElse(""));
}
return result;
}).collect(Collectors.toList());
}
private static Path toPath(File v) {
if (v != null) {
return v.toPath();
}
return null;
}
private void processResourceStream(InputStream rawResource, Path dest)
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