--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/java/sql-dk/src/main/java/info/globalcode/sql/dk/configuration/Properties.java Mon Mar 04 20:15:24 2019 +0100
@@ -0,0 +1,129 @@
+/**
+ * SQL-DK
+ * Copyright © 2013 František Kučera (frantovo.cz)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package info.globalcode.sql.dk.configuration;
+
+import java.util.ArrayList;
+import javax.xml.bind.annotation.XmlTransient;
+import static info.globalcode.sql.dk.Functions.findByName;
+import java.util.Collections;
+
+/**
+ * <p>
+ * List of configurables.</p>
+ *
+ * <p>
+ * Can be backed by defaults – if value for given name is nof found in this instance, we will
+ * look into defaults. Methods also accept defaultValue parameter – is used if property is nof found
+ * even in default properties.</p>
+ *
+ * <p>
+ * Typical use: </p>
+ * <ul>
+ * <li>this instance – ad-hoc properties from CLI options</li>
+ * <li>default properties – from config file</li>
+ * <li>defaultValue – hardcoded default</li>
+ * </ul>
+ *
+ * @author Ing. František Kučera (frantovo.cz)
+ */
+public class Properties extends ArrayList<Property> implements Cloneable {
+
+ private Properties defaults;
+
+ public Properties() {
+ }
+
+ public Properties(int initialCapacity) {
+ super(initialCapacity);
+ }
+
+ @XmlTransient
+ public Properties getDefaults() {
+ return defaults;
+ }
+
+ public void setDefaults(Properties defaults) {
+ this.defaults = defaults;
+ }
+
+ /**
+ * @param defaults the last/deepest defaults
+ */
+ public void setLastDefaults(Properties defaults) {
+ if (this.defaults == null) {
+ this.defaults = defaults;
+ } else {
+ this.defaults.setLastDefaults(defaults);
+ }
+ }
+
+ private Property findProperty(String name) {
+ Property p = findByName(this, name);
+ if (p == null && defaults != null) {
+ p = defaults.findProperty(name);
+ }
+ return p;
+ }
+
+ public String getString(String name, String defaultValue) {
+ Property p = findProperty(name);
+ return p == null ? defaultValue : p.getValue();
+ }
+
+ public boolean getBoolean(String name, boolean defaultValue) {
+ Property p = findProperty(name);
+ return p == null ? defaultValue : Boolean.valueOf(p.getValue());
+ }
+
+ public int getInteger(String name, int defaultValue) {
+ Property p = findProperty(name);
+ return p == null ? defaultValue : Integer.valueOf(p.getValue());
+ }
+
+ public boolean hasProperty(String name) {
+ return findByName(this, name) != null;
+ }
+
+ @Override
+ public Properties clone() {
+ Properties clone = new Properties(size());
+ Collections.copy(clone, this);
+ return clone;
+ }
+
+ /**
+ * @return merged this and backing defaults as Java Properties
+ */
+ public java.util.Properties getJavaProperties() {
+ java.util.Properties javaProperties = new java.util.Properties();
+ duplicateTo(javaProperties);
+ return javaProperties;
+ }
+
+ private void duplicateTo(java.util.Properties javaProperties) {
+ if (defaults != null) {
+ defaults.duplicateTo(javaProperties);
+ }
+ for (Property p : this) {
+ String value = p.getValue();
+ if (value != null) {
+ javaProperties.setProperty(p.getName(), value);
+ }
+ }
+ }
+}