ContentPackageProperties.java
- /*
- * #%L
- * wcm.io
- * %%
- * Copyright (C) 2017 wcm.io
- * %%
- * 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.
- * #L%
- */
- package io.wcm.tooling.commons.packmgr.util;
- import java.io.File;
- import java.io.IOException;
- import java.io.InputStream;
- import java.util.Collections;
- import java.util.HashMap;
- import java.util.Map;
- import java.util.Properties;
- import java.util.TreeMap;
- import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
- import org.apache.commons.compress.archivers.zip.ZipFile;
- import org.apache.commons.lang3.BooleanUtils;
- import org.apache.commons.lang3.StringUtils;
- import org.apache.commons.lang3.math.NumberUtils;
- /**
- * Reads package properties from AEM content package file.
- */
- public final class ContentPackageProperties {
- private static final String ZIP_ENTRY_PROPERTIES = "META-INF/vault/properties.xml";
- private ContentPackageProperties() {
- // constants only
- }
- /**
- * Get properties of AEM package.
- * @param packageFile AEM package file.
- * @return Map with properties or empty map if none found.
- * @throws IOException I/O exception
- */
- public static Map<String, Object> get(File packageFile) throws IOException {
- try (ZipFile zipFile = new ZipFile.Builder().setFile(packageFile).get()) {
- ZipArchiveEntry entry = zipFile.getEntry(ZIP_ENTRY_PROPERTIES);
- if (entry != null && !entry.isDirectory()) {
- Map<String, Object> props = getPackageProperties(zipFile, entry);
- return new TreeMap<>(transformPropertyTypes(props));
- }
- return Collections.emptyMap();
- }
- }
- @SuppressWarnings("unchecked")
- private static Map<String, Object> getPackageProperties(ZipFile zipFile, ZipArchiveEntry entry) throws IOException {
- try (InputStream entryStream = zipFile.getInputStream(entry)) {
- Properties props = new Properties();
- props.loadFromXML(entryStream);
- return (Map)props;
- }
- }
- private static Map<String, Object> transformPropertyTypes(Map<String, Object> props) {
- Map<String, Object> transformedProps = new HashMap<>();
- for (Map.Entry<String, Object> entry : props.entrySet()) {
- transformedProps.put(entry.getKey(), transformType(entry.getValue()));
- }
- return transformedProps;
- }
- /**
- * Detects if string values are boolean or integer and transforms them to correct types.
- * @param value Value
- * @return Transformed value
- */
- private static Object transformType(Object value) {
- if (value == null) {
- return null;
- }
- String valueString = value.toString();
- // check for boolean
- boolean boolValue = BooleanUtils.toBoolean(valueString);
- if (StringUtils.equals(valueString, Boolean.toString(boolValue))) {
- return boolValue;
- }
- // check for integer
- int intValue = NumberUtils.toInt(valueString);
- if (StringUtils.equals(valueString, Integer.toString(intValue))) {
- return intValue;
- }
- return value;
- }
- }