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authorChristian Wagner <c.wagner@datentechnik-innovation.com>2015-01-13 10:23:25 +0100
committerThomas Lenz <tlenz@iaik.tugraz.at>2015-06-19 11:06:48 +0200
commitcb6daf2e54d72a4a0bdca0252d96191440cd5f52 (patch)
treea3e95fef0a36866ad3ec4190d5a4e00222545f0c /id/server/moa-id-commons/src
parent70721aa00fa8eea76e9b632e7f17dd4424d2ad4e (diff)
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move 'persistence' package from project 'moa-id-DTI' here
Diffstat (limited to 'id/server/moa-id-commons/src')
-rw-r--r--id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/persistence/dal/ConfigProperty.java95
-rw-r--r--id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/persistence/dal/ConfigPropertyDao.java45
-rw-r--r--id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/persistence/dal/ConfigPropertyDaoImpl.java88
3 files changed, 228 insertions, 0 deletions
diff --git a/id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/persistence/dal/ConfigProperty.java b/id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/persistence/dal/ConfigProperty.java
new file mode 100644
index 000000000..7e4e217b0
--- /dev/null
+++ b/id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/persistence/dal/ConfigProperty.java
@@ -0,0 +1,95 @@
+package com.datentechnik.moa.id.conf.persistence.dal;
+
+import java.io.Serializable;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.Lob;
+import javax.persistence.Table;
+
+/**
+ * Reflects a MOAID configuration entry.
+ *
+ */
+@Table(name = "moaid_configuration")
+@Entity
+public class ConfigProperty implements Serializable {
+ private static final long serialVersionUID = 1L;
+
+ @Id
+ @Column(name = "propertyKey", unique = true)
+ private String key;
+
+ @Lob
+ @Column(name = "propertyValue")
+ private String value;
+
+ /**
+ * Returns the property's key.
+ * @return The key.
+ */
+ public String getKey() {
+ return key;
+ }
+
+ /**
+ * Sets the property's key.
+ * @param key The key
+ */
+ public void setKey(String key) {
+ this.key = key;
+ }
+
+ /**
+ * Returns the property's value (which might be {@code null}).
+ * @return The property's value (might be {@code null}).
+ */
+ public String getValue() {
+ return value;
+ }
+
+ /**
+ * Sets the property's value.
+ * @param value The value
+ */
+ public void setValue(String value) {
+ this.value = value;
+ }
+
+ @Override
+ public int hashCode() {
+ final int prime = 31;
+ int result = 1;
+ result = prime * result + ((key == null) ? 0 : key.hashCode());
+ return result;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj)
+ return true;
+ if (obj == null)
+ return false;
+ if (getClass() != obj.getClass())
+ return false;
+ ConfigProperty other = (ConfigProperty) obj;
+ if (key == null) {
+ if (other.key != null)
+ return false;
+ } else if (!key.equals(other.key))
+ return false;
+ return true;
+ }
+
+ @Override
+ public String toString() {
+ StringBuilder builder = new StringBuilder();
+ builder.append("ConfigProperty [key=");
+ builder.append(key);
+ builder.append(", value=");
+ builder.append(value);
+ builder.append("]");
+ return builder.toString();
+ }
+}
diff --git a/id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/persistence/dal/ConfigPropertyDao.java b/id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/persistence/dal/ConfigPropertyDao.java
new file mode 100644
index 000000000..a11d23ce8
--- /dev/null
+++ b/id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/persistence/dal/ConfigPropertyDao.java
@@ -0,0 +1,45 @@
+package com.datentechnik.moa.id.conf.persistence.dal;
+
+import java.util.List;
+import java.util.Set;
+
+/**
+ * DAO interface providing means for accessing MOAID configuration properties.
+ *
+ */
+public interface ConfigPropertyDao {
+
+ /**
+ * Returns the {@link ConfigProperty} associated with {@code key} or {@code null} if the entry does not exist.
+ *
+ * @param key The configuration key.
+ * @return The configuration property value or {@code null}.
+ */
+ public ConfigProperty getProperty(String key);
+
+ /**
+ * Persists a given {@link ConfigProperty}.
+ * @param property The property to be persisted.
+ */
+ public void saveProperty(ConfigProperty property);
+
+ /**
+ * Returns a {@link List} containing all stored {@linkplain ConfigProperty ConfigProperties}.
+ * @return The list with the properties.
+ */
+ public List<ConfigProperty> getProperties();
+
+ /**
+ * Returns the value for the configuration property associated with {@code key} or {@code null} if the entry does not exist or its value is {@code null}.
+ *
+ * @param key The configuration key.
+ * @return The configuration property value or {@code null}.
+ */
+ public String getPropertyValue(String key);
+
+ /**
+ * Persists a {@link List} of {@linkplain ConfigProperty ConfigProperties}.
+ * @param properties The list containing all the properties to be persisted.
+ */
+ public void saveProperties(Set<ConfigProperty> properties);
+}
diff --git a/id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/persistence/dal/ConfigPropertyDaoImpl.java b/id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/persistence/dal/ConfigPropertyDaoImpl.java
new file mode 100644
index 000000000..e1e0a836c
--- /dev/null
+++ b/id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/persistence/dal/ConfigPropertyDaoImpl.java
@@ -0,0 +1,88 @@
+package com.datentechnik.moa.id.conf.persistence.dal;
+
+import java.util.List;
+import java.util.Set;
+
+import javax.persistence.EntityManager;
+import javax.persistence.NoResultException;
+import javax.persistence.PersistenceContext;
+import javax.persistence.TypedQuery;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.transaction.annotation.Transactional;
+
+/**
+ * Database backed implementation of the DAO interface
+ *
+ */
+
+@Transactional("transactionManager")
+public class ConfigPropertyDaoImpl implements ConfigPropertyDao {
+
+ private Logger log = LoggerFactory.getLogger(getClass());
+
+ @PersistenceContext(unitName = "moaidconf")
+ private EntityManager em;
+
+ @Override
+ public void saveProperty(ConfigProperty property) {
+ if (null == em) {
+ log.error("No EntityManager set!");
+ return;
+ }
+
+ if (em.find(ConfigProperty.class, property.getKey()) != null) {
+ log.trace("Property '{}' already exists!", property.toString());
+ // TODO: think about merging
+ // em.merge(property);
+ } else {
+ log.debug("Storing '{}'.", property.toString());
+ em.persist(property);
+ }
+ }
+
+ @Override
+ public ConfigProperty getProperty(String key) {
+ log.debug("Looking for configuration property for key '{}'.", key);
+ ConfigProperty result = em.find(ConfigProperty.class, key);
+ if (result != null) {
+ log.debug("Found configuration property {}.", result);
+ } else {
+ log.debug("Unable to find configuration property for key '{}'.", key);
+ }
+ return result;
+ }
+
+ @Override
+ public String getPropertyValue(String key) {
+ ConfigProperty property = getProperty(key);
+ if (property == null) {
+ return null;
+ }
+ return property.getValue();
+ }
+
+ @Override
+ public List<ConfigProperty> getProperties() {
+ log.debug("Retrieving all properties from database.");
+ TypedQuery<ConfigProperty> query = em.createQuery("select mc from ConfigProperty mc", ConfigProperty.class);
+ try {
+ List<ConfigProperty> questionerVoterList = query.getResultList();
+ return questionerVoterList;
+ } catch (NoResultException e) {
+ log.debug("No property found in database.");
+ return null;
+ }
+ }
+
+ @Override
+ public void saveProperties(Set<ConfigProperty> properties) {
+ log.debug("Storing {} properties to database.", properties.size());
+ for (ConfigProperty cp : properties) {
+ saveProperty(cp);
+ }
+ em.flush();
+ }
+
+}