Example usage for javax.naming Name getPrefix

Introduction

In this page you can find the example usage for javax.naming Name getPrefix.

Prototype

public Name getPrefix(int posn);

Source Link

Document

Creates a name whose components consist of a prefix of the components of this name.

Usage

From source file:Util.java

/**
 * Bind val to name in ctx, and make sure that all intermediate contexts exist
 * /*from  w ww.j  ava  2s.c  o  m*/
 * @param ctx
 *          the parent JNDI Context under which value will be bound
 * @param name
 *          the name relative to ctx where value will be bound
 * @param value
 *          the value to bind.
 * @throws NamingException
 *           for any error
 */
public static void bind(Context ctx, Name name, Object value) throws NamingException {
    int size = name.size();
    String atom = name.get(size - 1);
    Context parentCtx = createSubcontext(ctx, name.getPrefix(size - 1));
    parentCtx.bind(atom, value);
}

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From source file:Util.java

/**
 * Rebind val to name in ctx, and make sure that all intermediate contexts
 * exist//w  ww .  jav  a  2 s.c o m
 * 
 * @param ctx
 *          the parent JNDI Context under which value will be bound
 * @param name
 *          the name relative to ctx where value will be bound
 * @param value
 *          the value to bind.
 * @throws NamingException
 *           for any error
 */
public static void rebind(Context ctx, Name name, Object value) throws NamingException {
    int size = name.size();
    String atom = name.get(size - 1);
    Context parentCtx = createSubcontext(ctx, name.getPrefix(size - 1));
    parentCtx.rebind(atom, value);
}

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From source file:Util.java

/**
 * Unbinds a name from ctx, and removes parents if they are empty
 * //from  w w w  . j  a va2 s. co m
 * @param ctx
 *          the parent JNDI Context under which the name will be unbound
 * @param name
 *          The name to unbind
 * @throws NamingException
 *           for any error
 */
public static void unbind(Context ctx, Name name) throws NamingException {
    ctx.unbind(name); // unbind the end node in the name
    int sz = name.size();
    // walk the tree backwards, stopping at the domain
    while (--sz > 0) {
        Name pname = name.getPrefix(sz);
        try {
            ctx.destroySubcontext(pname);
        } catch (NamingException e) {
            System.out.println("Unable to remove context " + pname + e);
            break;
        }
    }
}

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From source file:NonSerializableFactory.java

/** A convenience method that simplifies the process of rebinding a
 non-serializable object into a JNDI context.
        //w w  w. j  ava 2  s.  c o m
@param ctx the JNDI context to rebind to.
@param key the key to use in both the NonSerializableFactory map and JNDI. It
must be a valid name for use in ctx.bind().
@param target the non-Serializable object to bind.
@param createSubcontexts a flag indicating if subcontexts of name should
 be created if they do not already exist.
@throws NamingException thrown on failure to rebind key into ctx.
*/
public static synchronized void rebind(Context ctx, String key, Object target, boolean createSubcontexts)
        throws NamingException {
    Name name = ctx.getNameParser("").parse(key);
    if (createSubcontexts == true && name.size() > 1) {
        int size = name.size() - 1;
        Util.createSubcontext(ctx, name.getPrefix(size));
    }
    rebind(ctx, key, target);
}

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From source file:NonSerializableFactory.java

/** 
 * A convenience method that simplifies the process of rebinding a 
 * non-serializable object into a JNDI context. This version binds the
 * target object into the default IntitialContext using name path.
 * //from  w w  w. j  a v a2  s.  c  om
 * @param name the name to use as JNDI path name. The key into the 
 *   NonSerializableFactory map is obtained from the toString() value of name. 
 *   The name parameter cannot be a 0 length name.
 * @param target the non-Serializable object to bind.
 * @param createSubcontexts a flag indicating if subcontexts of name should 
 *   be created if they do not already exist.
 * @throws NamingException thrown on failure to rebind key into ctx.
 * @author Matt Carter
 **/
public static synchronized void rebind(Name name, Object target, boolean createSubcontexts)
        throws NamingException {
    String key = name.toString();
    InitialContext ctx = new InitialContext();
    if (createSubcontexts == true && name.size() > 1) {
        int size = name.size() - 1;
        Util.createSubcontext(ctx, name.getPrefix(size));
    }
    rebind(ctx, key, target);
}

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From source file:com.dattack.naming.AbstractContext.java

private Context getParentContext(final Name name) throws NamingException {

    final Object context = lookup(name.getPrefix(name.size() - 1));
    if (context instanceof Context) {
        return (Context) context;
    }//from   w  ww  .  j a  va 2s.  co  m
    throw new NamingException(String.format("Cannot unbind object. Target context does not exist (%s)",
            name.getPrefix(name.size() - 1)));
}

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From source file:com.dattack.naming.AbstractContext.java

@Override
public void destroySubcontext(final Name name) throws NamingException {

    if (name.size() > 1) {
        if (subContexts.containsKey(name.getPrefix(1))) {
            final Context subContext = subContexts.get(name.getPrefix(1));
            subContext.destroySubcontext(name.getSuffix(1));
            return;
        }/* w w w  .  ja  v a 2 s.  com*/
        throw new NameNotFoundException();
    }

    if (objectTable.containsKey(name) || !subContexts.containsKey(name)) {
        throw new NameNotFoundException(String.format("Context not found: %s", name));
    }

    final Context subContext = subContexts.get(name);
    final NamingEnumeration<NameClassPair> names = subContext.list("");
    if (names.hasMore()) {
        throw new ContextNotEmptyException();
    }

    subContexts.get(name).close();
    subContexts.remove(name);
}

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From source file:com.dattack.naming.AbstractContext.java

@Override
public NameParser getNameParser(final Name name) throws NamingException {

    if (name == null || name.isEmpty() || (name.size() == 1 && name.toString().equals(getNameInNamespace()))) {
        return nameParser;
    }//  ww  w.j ava  2s. c  om

    final Name subName = name.getPrefix(1);
    if (subContexts.containsKey(subName)) {
        return subContexts.get(subName).getNameParser(name.getSuffix(1));
    }

    throw new NotContextException();
}

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From source file:com.dattack.naming.AbstractContext.java

@Override
public void bind(final Name name, final Object object) throws NamingException {

    ensureContextNotClosed();//from ww w  .  jav  a2  s  .  co m

    if (object == null) {
        return;
    }

    if (name.isEmpty()) {
        throw new InvalidNameException("Cannot bind to an empty name");
    }

    final Name prefix = name.getPrefix(1);
    if (subContexts.containsKey(prefix)) {
        subContexts.get(prefix).bind(name.getSuffix(1), object);
        return;
    }

    if (objectTable.containsKey(name) || subContexts.containsKey(name) || env.containsKey(name.toString())) {
        throw new NameAlreadyBoundException(
                String.format("Name %s already bound. Use rebind() to override", name.toString()));
    }

    if (object instanceof Context) {
        subContexts.put(name, (Context) object);
    } else {
        objectTable.put(name, object);
    }
}

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From source file:com.dattack.naming.AbstractContext.java

@Override
public NamingEnumeration<Binding> listBindings(final Name name) throws NamingException {

    ensureContextNotClosed();/*from  w  ww  .  j  av  a2 s.c  o  m*/

    if (name == null || name.isEmpty()) {
        final Map<Name, Object> enumStore = new HashMap<Name, Object>();
        enumStore.putAll(objectTable);
        enumStore.putAll(subContexts);
        return new BindingNamingEnumeration(enumStore);
    }

    final Name subName = name.getPrefix(1);

    if (objectTable.containsKey(subName)) {
        throw new NotContextException(String.format("%s cannot be listed", name));
    }

    if (subContexts.containsKey(subName)) {
        return subContexts.get(subName).listBindings(name.getSuffix(1));
    }

    throw new NamingException(String.format("The named context '%s' can't be found", name));
}

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