+++ /dev/null
-package org.argeo.jcr;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.math.BigDecimal;
-import java.text.MessageFormat;
-import java.time.Instant;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Calendar;
-import java.util.Collections;
-import java.util.Date;
-import java.util.GregorianCalendar;
-import java.util.Iterator;
-import java.util.List;
-
-import javax.jcr.Binary;
-import javax.jcr.ItemNotFoundException;
-import javax.jcr.Node;
-import javax.jcr.NodeIterator;
-import javax.jcr.Property;
-import javax.jcr.PropertyType;
-import javax.jcr.Repository;
-import javax.jcr.RepositoryException;
-import javax.jcr.Session;
-import javax.jcr.Value;
-import javax.jcr.Workspace;
-import javax.jcr.nodetype.NodeType;
-import javax.jcr.query.Query;
-import javax.jcr.query.QueryManager;
-import javax.jcr.security.Privilege;
-import javax.jcr.version.Version;
-import javax.jcr.version.VersionHistory;
-import javax.jcr.version.VersionIterator;
-import javax.jcr.version.VersionManager;
-
-import org.apache.commons.io.IOUtils;
-
-/**
- * Utility class whose purpose is to make using JCR less verbose by
- * systematically using unchecked exceptions and returning <code>null</code>
- * when something is not found. This is especially useful when writing user
- * interfaces (such as with SWT) where listeners and callbacks expect unchecked
- * exceptions. Loosely inspired by Java's <code>Files</code> singleton.
- */
-public class Jcr {
- /**
- * The name of a node which will be serialized as XML text, as per section 7.3.1
- * of the JCR 2.0 specifications.
- */
- public final static String JCR_XMLTEXT = "jcr:xmltext";
- /**
- * The name of a property which will be serialized as XML text, as per section
- * 7.3.1 of the JCR 2.0 specifications.
- */
- public final static String JCR_XMLCHARACTERS = "jcr:xmlcharacters";
- /**
- * <code>jcr:name</code>, when used in another context than
- * {@link Property#JCR_NAME}, typically to name a node rather than a property.
- */
- public final static String JCR_NAME = "jcr:name";
- /**
- * <code>jcr:path</code>, when used in another context than
- * {@link Property#JCR_PATH}, typically to name a node rather than a property.
- */
- public final static String JCR_PATH = "jcr:path";
- /**
- * <code>jcr:primaryType</code> with prefix instead of namespace (as in
- * {@link Property#JCR_PRIMARY_TYPE}.
- */
- public final static String JCR_PRIMARY_TYPE = "jcr:primaryType";
- /**
- * <code>jcr:mixinTypes</code> with prefix instead of namespace (as in
- * {@link Property#JCR_MIXIN_TYPES}.
- */
- public final static String JCR_MIXIN_TYPES = "jcr:mixinTypes";
- /**
- * <code>jcr:uuid</code> with prefix instead of namespace (as in
- * {@link Property#JCR_UUID}.
- */
- public final static String JCR_UUID = "jcr:uuid";
- /**
- * <code>jcr:created</code> with prefix instead of namespace (as in
- * {@link Property#JCR_CREATED}.
- */
- public final static String JCR_CREATED = "jcr:created";
- /**
- * <code>jcr:createdBy</code> with prefix instead of namespace (as in
- * {@link Property#JCR_CREATED_BY}.
- */
- public final static String JCR_CREATED_BY = "jcr:createdBy";
- /**
- * <code>jcr:lastModified</code> with prefix instead of namespace (as in
- * {@link Property#JCR_LAST_MODIFIED}.
- */
- public final static String JCR_LAST_MODIFIED = "jcr:lastModified";
- /**
- * <code>jcr:lastModifiedBy</code> with prefix instead of namespace (as in
- * {@link Property#JCR_LAST_MODIFIED_BY}.
- */
- public final static String JCR_LAST_MODIFIED_BY = "jcr:lastModifiedBy";
-
- /**
- * @see Node#isNodeType(String)
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static boolean isNodeType(Node node, String nodeTypeName) {
- try {
- return node.isNodeType(nodeTypeName);
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get whether " + node + " is of type " + nodeTypeName, e);
- }
- }
-
- /**
- * @see Node#hasNodes()
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static boolean hasNodes(Node node) {
- try {
- return node.hasNodes();
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get whether " + node + " has children.", e);
- }
- }
-
- /**
- * @see Node#getParent()
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static Node getParent(Node node) {
- try {
- return isRoot(node) ? null : node.getParent();
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get parent of " + node, e);
- }
- }
-
- /**
- * @see Node#getParent()
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static String getParentPath(Node node) {
- return getPath(getParent(node));
- }
-
- /**
- * Whether this node is the root node.
- *
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static boolean isRoot(Node node) {
- try {
- return node.getDepth() == 0;
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get depth of " + node, e);
- }
- }
-
- /**
- * @see Node#getPath()
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static String getPath(Node node) {
- try {
- return node.getPath();
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get path of " + node, e);
- }
- }
-
- /**
- * @see Node#getSession()
- * @see Session#getWorkspace()
- * @see Workspace#getName()
- */
- public static String getWorkspaceName(Node node) {
- return session(node).getWorkspace().getName();
- }
-
- /**
- * @see Node#getIdentifier()
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static String getIdentifier(Node node) {
- try {
- return node.getIdentifier();
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get identifier of " + node, e);
- }
- }
-
- /**
- * @see Node#getName()
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static String getName(Node node) {
- try {
- return node.getName();
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get name of " + node, e);
- }
- }
-
- /**
- * Returns the node name with its current index (useful for re-ordering).
- *
- * @see Node#getName()
- * @see Node#getIndex()
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static String getIndexedName(Node node) {
- try {
- return node.getName() + "[" + node.getIndex() + "]";
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get name of " + node, e);
- }
- }
-
- /**
- * @see Node#getProperty(String)
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static Property getProperty(Node node, String property) {
- try {
- if (node.hasProperty(property))
- return node.getProperty(property);
- else
- return null;
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get property " + property + " of " + node, e);
- }
- }
-
- /**
- * @see Node#getIndex()
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static int getIndex(Node node) {
- try {
- return node.getIndex();
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get index of " + node, e);
- }
- }
-
- /**
- * If node has mixin {@link NodeType#MIX_TITLE}, return
- * {@link Property#JCR_TITLE}, otherwise return {@link #getName(Node)}.
- */
- public static String getTitle(Node node) {
- if (Jcr.isNodeType(node, NodeType.MIX_TITLE))
- return get(node, Property.JCR_TITLE);
- else
- return Jcr.getName(node);
- }
-
- /** Accesses a {@link NodeIterator} as an {@link Iterable}. */
- @SuppressWarnings("unchecked")
- public static Iterable<Node> iterate(NodeIterator nodeIterator) {
- return new Iterable<Node>() {
-
- @Override
- public Iterator<Node> iterator() {
- return nodeIterator;
- }
- };
- }
-
- /**
- * @return the children as an {@link Iterable} for use in for-each llops.
- * @see Node#getNodes()
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static Iterable<Node> nodes(Node node) {
- try {
- return iterate(node.getNodes());
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get children of " + node, e);
- }
- }
-
- /**
- * @return the children as a (possibly empty) {@link List}.
- * @see Node#getNodes()
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static List<Node> getNodes(Node node) {
- List<Node> nodes = new ArrayList<>();
- try {
- if (node.hasNodes()) {
- NodeIterator nit = node.getNodes();
- while (nit.hasNext())
- nodes.add(nit.nextNode());
- return nodes;
- } else
- return nodes;
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get children of " + node, e);
- }
- }
-
- /**
- * @return the child or <code>null</node> if not found
- * @see Node#getNode(String)
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static Node getNode(Node node, String child) {
- try {
- if (node.hasNode(child))
- return node.getNode(child);
- else
- return null;
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get child of " + node, e);
- }
- }
-
- /**
- * @return the node at this path or <code>null</node> if not found
- * @see Session#getNode(String)
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static Node getNode(Session session, String path) {
- try {
- if (session.nodeExists(path))
- return session.getNode(path);
- else
- return null;
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get node " + path, e);
- }
- }
-
- /**
- * Add a node to this parent, setting its primary type and its mixins.
- *
- * @param parent the parent node
- * @param name the name of the node, if <code>null</code>, the primary
- * type will be used (typically for XML structures)
- * @param primaryType the primary type, if <code>null</code>
- * {@link NodeType#NT_UNSTRUCTURED} will be used.
- * @param mixins the mixins
- * @return the created node
- * @see Node#addNode(String, String)
- * @see Node#addMixin(String)
- */
- public static Node addNode(Node parent, String name, String primaryType, String... mixins) {
- if (name == null && primaryType == null)
- throw new IllegalArgumentException("Both node name and primary type cannot be null");
- try {
- Node newNode = parent.addNode(name == null ? primaryType : name,
- primaryType == null ? NodeType.NT_UNSTRUCTURED : primaryType);
- for (String mixin : mixins) {
- newNode.addMixin(mixin);
- }
- return newNode;
- } catch (RepositoryException e) {
- throw new JcrException("Cannot add node " + name + " to " + parent, e);
- }
- }
-
- /**
- * Add an {@link NodeType#NT_BASE} node to this parent.
- *
- * @param parent the parent node
- * @param name the name of the node, cannot be <code>null</code>
- * @return the created node
- *
- * @see Node#addNode(String)
- */
- public static Node addNode(Node parent, String name) {
- if (name == null)
- throw new IllegalArgumentException("Node name cannot be null");
- try {
- Node newNode = parent.addNode(name);
- return newNode;
- } catch (RepositoryException e) {
- throw new JcrException("Cannot add node " + name + " to " + parent, e);
- }
- }
-
- /**
- * Add mixins to a node.
- *
- * @param node the node
- * @param mixins the mixins
- * @return the created node
- * @see Node#addMixin(String)
- */
- public static void addMixin(Node node, String... mixins) {
- try {
- for (String mixin : mixins) {
- node.addMixin(mixin);
- }
- } catch (RepositoryException e) {
- throw new JcrException("Cannot add mixins " + Arrays.asList(mixins) + " to " + node, e);
- }
- }
-
- /**
- * Removes this node.
- *
- * @see Node#remove()
- */
- public static void remove(Node node) {
- try {
- node.remove();
- } catch (RepositoryException e) {
- throw new JcrException("Cannot remove node " + node, e);
- }
- }
-
- /**
- * @return the node with htis id or <code>null</node> if not found
- * @see Session#getNodeByIdentifier(String)
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static Node getNodeById(Session session, String id) {
- try {
- return session.getNodeByIdentifier(id);
- } catch (ItemNotFoundException e) {
- return null;
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get node with id " + id, e);
- }
- }
-
- /**
- * Set a property to the given value, or remove it if the value is
- * <code>null</code>.
- *
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static void set(Node node, String property, Object value) {
- try {
- if (!node.hasProperty(property)) {
- if (value != null) {
- if (value instanceof List) {// multiple
- List<?> lst = (List<?>) value;
- String[] values = new String[lst.size()];
- for (int i = 0; i < lst.size(); i++) {
- values[i] = lst.get(i).toString();
- }
- node.setProperty(property, values);
- } else {
- node.setProperty(property, value.toString());
- }
- }
- return;
- }
- Property prop = node.getProperty(property);
- if (value == null) {
- prop.remove();
- return;
- }
-
- // multiple
- if (value instanceof List) {
- List<?> lst = (List<?>) value;
- String[] values = new String[lst.size()];
- // TODO better cast?
- for (int i = 0; i < lst.size(); i++) {
- values[i] = lst.get(i).toString();
- }
- if (!prop.isMultiple())
- prop.remove();
- node.setProperty(property, values);
- return;
- }
-
- // single
- if (prop.isMultiple()) {
- prop.remove();
- node.setProperty(property, value.toString());
- return;
- }
-
- if (value instanceof String)
- prop.setValue((String) value);
- else if (value instanceof Long)
- prop.setValue((Long) value);
- else if (value instanceof Integer)
- prop.setValue(((Integer) value).longValue());
- else if (value instanceof Double)
- prop.setValue((Double) value);
- else if (value instanceof Float)
- prop.setValue(((Float) value).doubleValue());
- else if (value instanceof Calendar)
- prop.setValue((Calendar) value);
- else if (value instanceof BigDecimal)
- prop.setValue((BigDecimal) value);
- else if (value instanceof Boolean)
- prop.setValue((Boolean) value);
- else if (value instanceof byte[])
- JcrUtils.setBinaryAsBytes(prop, (byte[]) value);
- else if (value instanceof Instant) {
- Instant instant = (Instant) value;
- GregorianCalendar calendar = new GregorianCalendar();
- calendar.setTime(Date.from(instant));
- prop.setValue(calendar);
- } else // try with toString()
- prop.setValue(value.toString());
- } catch (RepositoryException e) {
- throw new JcrException("Cannot set property " + property + " of " + node + " to " + value, e);
- }
- }
-
- /**
- * Get property as {@link String}.
- *
- * @return the value of
- * {@link Node#getProperty(String)}.{@link Property#getString()} or
- * <code>null</code> if the property does not exist.
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static String get(Node node, String property) {
- return get(node, property, null);
- }
-
- /**
- * Get property as a {@link String}. If the property is multiple it returns the
- * first value.
- *
- * @return the value of
- * {@link Node#getProperty(String)}.{@link Property#getString()} or
- * <code>defaultValue</code> if the property does not exist.
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static String get(Node node, String property, String defaultValue) {
- try {
- if (node.hasProperty(property)) {
- Property p = node.getProperty(property);
- if (!p.isMultiple())
- return p.getString();
- else {
- Value[] values = p.getValues();
- if (values.length == 0)
- return defaultValue;
- else
- return values[0].getString();
- }
- } else
- return defaultValue;
- } catch (RepositoryException e) {
- throw new JcrException("Cannot retrieve property " + property + " from " + node, e);
- }
- }
-
- /**
- * Get property as a {@link Value}.
- *
- * @return {@link Node#getProperty(String)} or <code>null</code> if the property
- * does not exist.
- * @throws JcrException caused by {@link RepositoryException}
- */
- public static Value getValue(Node node, String property) {
- try {
- if (node.hasProperty(property))
- return node.getProperty(property).getValue();
- else
- return null;
- } catch (RepositoryException e) {
- throw new JcrException("Cannot retrieve property " + property + " from " + node, e);
- }
- }
-
- /**
- * Get property doing a best effort to cast it as the target object.
- *
- * @return the value of {@link Node#getProperty(String)} or
- * <code>defaultValue</code> if the property does not exist.
- * @throws IllegalArgumentException if the value could not be cast
- * @throws JcrException in case of unexpected
- * {@link RepositoryException}
- */
- @SuppressWarnings("unchecked")
- public static <T> T getAs(Node node, String property, T defaultValue) {
- try {
- // TODO deal with multiple
- if (node.hasProperty(property)) {
- Property p = node.getProperty(property);
- try {
- if (p.isMultiple()) {
- throw new UnsupportedOperationException("Multiple values properties are not supported");
- }
- Value value = p.getValue();
- return (T) get(value);
- } catch (ClassCastException e) {
- throw new IllegalArgumentException(
- "Cannot cast property of type " + PropertyType.nameFromValue(p.getType()), e);
- }
- } else {
- return defaultValue;
- }
- } catch (RepositoryException e) {
- throw new JcrException("Cannot retrieve property " + property + " from " + node, e);
- }
- }
-
- /**
- * Get a multiple property as a list, doing a best effort to cast it as the
- * target list.
- *
- * @return the value of {@link Node#getProperty(String)}.
- * @throws IllegalArgumentException if the value could not be cast
- * @throws JcrException in case of unexpected
- * {@link RepositoryException}
- */
- public static <T> List<T> getMultiple(Node node, String property) {
- try {
- if (node.hasProperty(property)) {
- Property p = node.getProperty(property);
- return getMultiple(p);
- } else {
- return null;
- }
- } catch (RepositoryException e) {
- throw new JcrException("Cannot retrieve multiple values property " + property + " from " + node, e);
- }
- }
-
- /**
- * Get a multiple property as a list, doing a best effort to cast it as the
- * target list.
- */
- @SuppressWarnings("unchecked")
- public static <T> List<T> getMultiple(Property p) {
- try {
- List<T> res = new ArrayList<>();
- if (!p.isMultiple()) {
- res.add((T) get(p.getValue()));
- return res;
- }
- Value[] values = p.getValues();
- for (Value value : values) {
- res.add((T) get(value));
- }
- return res;
- } catch (ClassCastException | RepositoryException e) {
- throw new IllegalArgumentException("Cannot get property " + p, e);
- }
- }
-
- /** Cast a {@link Value} to a standard Java object. */
- public static Object get(Value value) {
- Binary binary = null;
- try {
- switch (value.getType()) {
- case PropertyType.STRING:
- return value.getString();
- case PropertyType.DOUBLE:
- return (Double) value.getDouble();
- case PropertyType.LONG:
- return (Long) value.getLong();
- case PropertyType.BOOLEAN:
- return (Boolean) value.getBoolean();
- case PropertyType.DATE:
- return value.getDate();
- case PropertyType.BINARY:
- binary = value.getBinary();
- byte[] arr = null;
- try (InputStream in = binary.getStream(); ByteArrayOutputStream out = new ByteArrayOutputStream();) {
- IOUtils.copy(in, out);
- arr = out.toByteArray();
- } catch (IOException e) {
- throw new RuntimeException("Cannot read binary from " + value, e);
- }
- return arr;
- default:
- return value.getString();
- }
- } catch (RepositoryException e) {
- throw new JcrException("Cannot cast value from " + value, e);
- } finally {
- if (binary != null)
- binary.dispose();
- }
- }
-
- /**
- * Retrieves the {@link Session} related to this node.
- *
- * @deprecated Use {@link #getSession(Node)} instead.
- */
- @Deprecated
- public static Session session(Node node) {
- return getSession(node);
- }
-
- /** Retrieves the {@link Session} related to this node. */
- public static Session getSession(Node node) {
- try {
- return node.getSession();
- } catch (RepositoryException e) {
- throw new JcrException("Cannot retrieve session related to " + node, e);
- }
- }
-
- /** Retrieves the root node related to this session. */
- public static Node getRootNode(Session session) {
- try {
- return session.getRootNode();
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get root node for " + session, e);
- }
- }
-
- /** Whether this item exists. */
- public static boolean itemExists(Session session, String path) {
- try {
- return session.itemExists(path);
- } catch (RepositoryException e) {
- throw new JcrException("Cannot check whether " + path + " exists", e);
- }
- }
-
- /**
- * Saves the {@link Session} related to this node. Note that all other unrelated
- * modifications in this session will also be saved.
- */
- public static void save(Node node) {
- try {
- Session session = node.getSession();
-// if (node.isNodeType(NodeType.MIX_LAST_MODIFIED)) {
-// set(node, Property.JCR_LAST_MODIFIED, Instant.now());
-// set(node, Property.JCR_LAST_MODIFIED_BY, session.getUserID());
-// }
- if (session.hasPendingChanges())
- session.save();
- } catch (RepositoryException e) {
- throw new JcrException("Cannot save session related to " + node + " in workspace "
- + session(node).getWorkspace().getName(), e);
- }
- }
-
- /** Login to a JCR repository. */
- public static Session login(Repository repository, String workspace) {
- try {
- return repository.login(workspace);
- } catch (RepositoryException e) {
- throw new IllegalArgumentException("Cannot login to repository", e);
- }
- }
-
- /** Safely and silently logs out a session. */
- public static void logout(Session session) {
- try {
- if (session != null)
- if (session.isLive())
- session.logout();
- } catch (Exception e) {
- // silent
- }
- }
-
- /** Safely and silently logs out the underlying session. */
- public static void logout(Node node) {
- Jcr.logout(session(node));
- }
-
- /*
- * SECURITY
- */
- /**
- * Add a single privilege to a node.
- *
- * @see Privilege
- */
- public static void addPrivilege(Node node, String principal, String privilege) {
- try {
- Session session = node.getSession();
- JcrUtils.addPrivilege(session, node.getPath(), principal, privilege);
- } catch (RepositoryException e) {
- throw new JcrException("Cannot add privilege " + privilege + " to " + node, e);
- }
- }
-
- /*
- * VERSIONING
- */
- /** Get checked out status. */
- public static boolean isCheckedOut(Node node) {
- try {
- return node.isCheckedOut();
- } catch (RepositoryException e) {
- throw new JcrException("Cannot retrieve checked out status of " + node, e);
- }
- }
-
- /** @see VersionManager#checkpoint(String) */
- public static void checkpoint(Node node) {
- try {
- versionManager(node).checkpoint(node.getPath());
- } catch (RepositoryException e) {
- throw new JcrException("Cannot check in " + node, e);
- }
- }
-
- /** @see VersionManager#checkin(String) */
- public static void checkin(Node node) {
- try {
- versionManager(node).checkin(node.getPath());
- } catch (RepositoryException e) {
- throw new JcrException("Cannot check in " + node, e);
- }
- }
-
- /** @see VersionManager#checkout(String) */
- public static void checkout(Node node) {
- try {
- versionManager(node).checkout(node.getPath());
- } catch (RepositoryException e) {
- throw new JcrException("Cannot check out " + node, e);
- }
- }
-
- /** Get the {@link VersionManager} related to this node. */
- public static VersionManager versionManager(Node node) {
- try {
- return node.getSession().getWorkspace().getVersionManager();
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get version manager from " + node, e);
- }
- }
-
- /** Get the {@link VersionHistory} related to this node. */
- public static VersionHistory getVersionHistory(Node node) {
- try {
- return versionManager(node).getVersionHistory(node.getPath());
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get version history from " + node, e);
- }
- }
-
- /**
- * The linear versions of this version history in reverse order and without the
- * root version.
- */
- public static List<Version> getLinearVersions(VersionHistory versionHistory) {
- try {
- List<Version> lst = new ArrayList<>();
- VersionIterator vit = versionHistory.getAllLinearVersions();
- while (vit.hasNext())
- lst.add(vit.nextVersion());
- lst.remove(0);
- Collections.reverse(lst);
- return lst;
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get linear versions from " + versionHistory, e);
- }
- }
-
- /** The frozen node related to this {@link Version}. */
- public static Node getFrozenNode(Version version) {
- try {
- return version.getFrozenNode();
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get frozen node from " + version, e);
- }
- }
-
- /** Get the base {@link Version} related to this node. */
- public static Version getBaseVersion(Node node) {
- try {
- return versionManager(node).getBaseVersion(node.getPath());
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get base version from " + node, e);
- }
- }
-
- /*
- * FILES
- */
- /**
- * Returns the size of this file.
- *
- * @see NodeType#NT_FILE
- */
- public static long getFileSize(Node fileNode) {
- try {
- if (!fileNode.isNodeType(NodeType.NT_FILE))
- throw new IllegalArgumentException(fileNode + " must be a file.");
- return getBinarySize(fileNode.getNode(Node.JCR_CONTENT).getProperty(Property.JCR_DATA).getBinary());
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get file size of " + fileNode, e);
- }
- }
-
- /** Returns the size of this {@link Binary}. */
- public static long getBinarySize(Binary binaryArg) {
- try {
- try (Bin binary = new Bin(binaryArg)) {
- return binary.getSize();
- }
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get file size of binary " + binaryArg, e);
- }
- }
-
- // QUERY
- /** Creates a JCR-SQL2 query using {@link MessageFormat}. */
- public static Query createQuery(QueryManager qm, String sql, Object... args) {
- // fix single quotes
- sql = sql.replaceAll("'", "''");
- String query = MessageFormat.format(sql, args);
- try {
- return qm.createQuery(query, Query.JCR_SQL2);
- } catch (RepositoryException e) {
- throw new JcrException("Cannot create JCR-SQL2 query from " + query, e);
- }
- }
-
- /** Executes a JCR-SQL2 query using {@link MessageFormat}. */
- public static NodeIterator executeQuery(QueryManager qm, String sql, Object... args) {
- Query query = createQuery(qm, sql, args);
- try {
- return query.execute().getNodes();
- } catch (RepositoryException e) {
- throw new JcrException("Cannot execute query " + sql + " with arguments " + Arrays.asList(args), e);
- }
- }
-
- /** Executes a JCR-SQL2 query using {@link MessageFormat}. */
- public static NodeIterator executeQuery(Session session, String sql, Object... args) {
- QueryManager queryManager;
- try {
- queryManager = session.getWorkspace().getQueryManager();
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get query manager from session " + session, e);
- }
- return executeQuery(queryManager, sql, args);
- }
-
- /**
- * Executes a JCR-SQL2 query using {@link MessageFormat}, which must return a
- * single node at most.
- *
- * @return the node or <code>null</code> if not found.
- */
- public static Node getNode(QueryManager qm, String sql, Object... args) {
- NodeIterator nit = executeQuery(qm, sql, args);
- if (nit.hasNext()) {
- Node node = nit.nextNode();
- if (nit.hasNext())
- throw new IllegalStateException(
- "Query " + sql + " with arguments " + Arrays.asList(args) + " returned more than one node.");
- return node;
- } else {
- return null;
- }
- }
-
- /**
- * Executes a JCR-SQL2 query using {@link MessageFormat}, which must return a
- * single node at most.
- *
- * @return the node or <code>null</code> if not found.
- */
- public static Node getNode(Session session, String sql, Object... args) {
- QueryManager queryManager;
- try {
- queryManager = session.getWorkspace().getQueryManager();
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get query manager from session " + session, e);
- }
- return getNode(queryManager, sql, args);
- }
-
- /** Singleton. */
- private Jcr() {
-
- }
-}
projects / lgpl / argeo-commons.git / blobdiff