/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Portions Copyright 2007 Sun Microsystems, Inc.
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*/
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package org.opends.server.admin;
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import java.text.NumberFormat;
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import java.util.EnumSet;
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import java.util.Set;
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import java.util.TreeSet;
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/**
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* A property definition visitor which can be used to generate syntax
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* usage information.
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*/
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public final class PropertyDefinitionUsageBuilder {
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/**
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* Underlying implementation.
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*/
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private class MyPropertyDefinitionVisitor extends
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PropertyDefinitionVisitor<String, Void> {
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// Flag indicating whether detailed syntax information will be
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// generated.
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private final boolean isDetailed;
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// The formatter to use for numeric values.
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private final NumberFormat numberFormat;
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// Private constructor.
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private MyPropertyDefinitionVisitor(boolean isDetailed) {
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this.isDetailed = isDetailed;
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this.numberFormat = NumberFormat.getNumberInstance();
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this.numberFormat.setGroupingUsed(true);
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this.numberFormat.setMaximumFractionDigits(2);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public String visitAttributeType(AttributeTypePropertyDefinition d,
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Void p) {
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return "OID";
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public String visitBoolean(BooleanPropertyDefinition d, Void p) {
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if (isDetailed) {
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return "false | true";
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} else {
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return "BOOLEAN";
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public String visitClass(ClassPropertyDefinition d, Void p) {
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if (isDetailed && !d.getInstanceOfInterface().isEmpty()) {
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return "CLASS <= " + d.getInstanceOfInterface().get(0);
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} else {
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return "CLASS";
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public String visitDN(DNPropertyDefinition d, Void p) {
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if (isDetailed && d.getBaseDN() != null) {
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return "DN <= " + d.getBaseDN();
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} else {
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return "DN";
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public String visitDuration(DurationPropertyDefinition d, Void p) {
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StringBuilder builder = new StringBuilder();
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DurationUnit unit = d.getBaseUnit();
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if (isDetailed && d.getLowerLimit() > 0) {
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builder.append(DurationUnit.toString(d.getLowerLimit()));
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builder.append(" <= ");
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}
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builder.append("DURATION (");
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builder.append(unit.getShortName());
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builder.append(')');
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if (isDetailed) {
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if (d.getUpperLimit() != null) {
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builder.append(" <= ");
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builder.append(DurationUnit.toString(d.getUpperLimit()));
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}
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if (d.isAllowUnlimited()) {
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builder.append(" | unlimited");
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}
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}
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return builder.toString();
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public <E extends Enum<E>> String visitEnum(EnumPropertyDefinition<E> d,
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Void p) {
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if (!isDetailed) {
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// Use the last word in the property name.
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String name = d.getName();
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int i = name.lastIndexOf('-');
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if (i == -1 || i == (name.length() - 1)) {
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return name.toUpperCase();
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} else {
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return name.substring(i + 1).toUpperCase();
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}
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} else {
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Set<String> values = new TreeSet<String>();
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for (Object value : EnumSet.allOf(d.getEnumClass())) {
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values.add(value.toString().trim().toLowerCase());
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}
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boolean isFirst = true;
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StringBuilder builder = new StringBuilder();
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for (String s : values) {
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if (!isFirst) {
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builder.append(" | ");
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}
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builder.append(s);
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isFirst = false;
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}
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return builder.toString();
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public String visitInteger(IntegerPropertyDefinition d, Void p) {
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StringBuilder builder = new StringBuilder();
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if (isDetailed) {
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builder.append(d.getLowerLimit());
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builder.append(" <= ");
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}
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builder.append("INTEGER");
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if (isDetailed) {
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if (d.getUpperLimit() != null) {
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builder.append(" <= ");
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builder.append(d.getUpperLimit());
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} else if (d.isAllowUnlimited()) {
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builder.append(" | unlimited");
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}
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}
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return builder.toString();
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public String visitIPAddress(IPAddressPropertyDefinition d, Void p) {
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return "HOST_NAME";
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public String visitIPAddressMask(IPAddressMaskPropertyDefinition d,
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Void p) {
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return "IP_ADDRESS_MASK";
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public String visitSize(SizePropertyDefinition d, Void p) {
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StringBuilder builder = new StringBuilder();
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if (isDetailed && d.getLowerLimit() > 0) {
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SizeUnit unit = SizeUnit.getBestFitUnitExact(d.getLowerLimit());
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builder.append(numberFormat.format(unit.fromBytes(d.getLowerLimit())));
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builder.append(' ');
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builder.append(unit.getShortName());
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builder.append(" <= ");
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}
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builder.append("SIZE");
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if (isDetailed) {
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if (d.getUpperLimit() != null) {
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long upperLimit = d.getUpperLimit();
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SizeUnit unit = SizeUnit.getBestFitUnitExact(upperLimit);
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// Quite often an upper limit is some power of 2 minus 1. In those
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// cases lets use a "less than" relation rather than a "less than
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// or equal to" relation. This will result in a much more readable
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// quantity.
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if (unit == SizeUnit.BYTES && upperLimit < Long.MAX_VALUE) {
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unit = SizeUnit.getBestFitUnitExact(upperLimit + 1);
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if (unit != SizeUnit.BYTES) {
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upperLimit += 1;
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builder.append(" < ");
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} else {
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builder.append(" <= ");
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}
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} else {
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builder.append(" <= ");
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}
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builder.append(numberFormat.format(unit.fromBytes(upperLimit)));
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builder.append(' ');
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builder.append(unit.getShortName());
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}
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if (d.isAllowUnlimited()) {
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builder.append(" | unlimited");
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}
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}
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return builder.toString();
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public String visitString(StringPropertyDefinition d, Void p) {
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if (d.getPattern() != null) {
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return d.getPatternUsage();
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} else {
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return "STRING";
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public String visitUnknown(PropertyDefinition d, Void p)
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throws UnknownPropertyDefinitionException {
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return "?";
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}
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}
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// Underlying implementation.
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private final MyPropertyDefinitionVisitor pimpl;
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/**
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* Creates a new property usage builder.
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*
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* @param isDetailed
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* Indicates whether or not the generated usage should
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* contain detailed information such as constraints.
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*/
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public PropertyDefinitionUsageBuilder(boolean isDetailed) {
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this.pimpl = new MyPropertyDefinitionVisitor(isDetailed);
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}
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/**
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* Generates the usage information for the provided property
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* definition.
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*
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* @param pd
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* The property definitions.
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* @return Returns the usage information for the provided property
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* definition.
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*/
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public String getUsage(PropertyDefinition<?> pd) {
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return pd.accept(pimpl, null);
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};
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}
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