+/*
+ * Copyright (c) 2015-2019. Developed by Hedgecode.
+ *
+ * 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.hedgecode.xml.xspf;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+
+/**
+ * XSPF API properties holder.
+ *
+ * @author Dmitry Samoshin aka gotty
+ */
+public final class XSPFProperties {
+
+ /** Charset. */
+ public static final String CHARSET = "xspf.charset";
+
+ /** Formatted output. */
+ public static final String FORMATTED = "xspf.formatted.output";
+
+ /** Standalone. */
+ public static final String STANDALONE = "xspf.standalone";
+
+ /** Version. */
+ public static final String VERSION = "xspf.version";
+
+ /** Inception year. */
+ public static final String INCEPTION_YEAR = "xspf.inception.year";
+
+ /** Properties file. */
+ private static final String PROPERTIES_FILE = "xspf.properties";
+
+ /** Properties. */
+ private static final TypedProperties PROPERTIES;
+
+ /**
+ * Static properties initialization.
+ */
+ static {
+ TypedProperties defaults = new TypedProperties() {
+ {
+ setProperty(CHARSET, XSPFConstants.DEF_CHARSET.name());
+ setProperty(FORMATTED, Boolean.TRUE);
+ setProperty(STANDALONE, Boolean.FALSE);
+ }
+ };
+ PROPERTIES = new TypedProperties(defaults);
+ readProperties(PROPERTIES_FILE, PROPERTIES, true);
+ }
+
+ /**
+ * Read settings from properties file.
+ *
+ * @param propsFile properties file name.
+ * @param props properties.
+ * @param throwExc flag indicating whether to throw an exception or not.
+ */
+ private static void readProperties(String propsFile, TypedProperties props, boolean throwExc) {
+ try (InputStream is = XSPFProperties.class.getClassLoader().getResourceAsStream(propsFile)) {
+ if (is == null) {
+ if (throwExc)
+ throw new RuntimeException("Failed to find properties file: " + propsFile);
+ else
+ return;
+ }
+ props.load(is);
+ }
+ catch (IOException e) {
+ throw new RuntimeException("Failed to read properties file: " + propsFile, e);
+ }
+ }
+
+ /**
+ * Empty string for not found properties.
+ */
+ private static final String EMPTY = "";
+
+ /**
+ * Get string property value.
+ *
+ * @param key property key.
+ * @return string value in the property list with the specified key value or empty string.
+ */
+ public static String getString(String key) {
+ return PROPERTIES.getProperty(key, String.class, EMPTY);
+ }
+
+ /**
+ * Get boolean property value or null if key not found.
+ *
+ * @param key property key.
+ * @return boolean value in the property list with the specified key value.
+ */
+ public static Boolean getBoolean(String key) {
+ return PROPERTIES.getBoolean(key);
+ }
+
+ /**
+ * Get boolean property value or default value if key not found.
+ *
+ * @param key property key.
+ * @param defaultValue default value if key not found.
+ * @return boolean value in the property list with the specified key value.
+ */
+ public static Boolean getBoolean(String key, boolean defaultValue) {
+ return PROPERTIES.getProperty(key, Boolean.class, defaultValue);
+ }
+
+ /**
+ * Get integer property value or null if key not found..
+ *
+ * @param key property key.
+ * @return integer value in the property list with the specified key value.
+ */
+ public static Integer getInteger(String key) {
+ return PROPERTIES.getInteger(key);
+ }
+
+ /**
+ * Get integer property value or default value if key not found..
+ *
+ * @param key property key.
+ * @param defaultValue default value if key not found.
+ * @return integer value in the property list with the specified key value.
+ */
+ public static Integer getInteger(String key, int defaultValue) {
+ return PROPERTIES.getProperty(key, Integer.class, defaultValue);
+ }
+
+ /**
+ * Get charset.
+ *
+ * @return charset value in the property list or default charset value.
+ */
+ public static Charset getCharset() {
+ return Charset.forName(
+ PROPERTIES.getString(CHARSET)
+ );
+ }
+
+ /**
+ * Set property value.
+ *
+ * @param key key to be placed into this property list.
+ * @param value value corresponding to key.
+ */
+ public static void setProperty(String key, Object value) {
+ if (PROPERTIES.containsKey(key)) {
+ if (PROPERTIES.get(key).getClass().isInstance(value)) {
+ PROPERTIES.replace(key, value);
+ }
+ } else {
+ PROPERTIES.setProperty(key, value);
+ }
+ }
+
+ /**
+ * Private constructor.
+ */
+ private XSPFProperties() {
+ }
+
+}