| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.jackrabbit.oak.plugins.memory; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Calendar; |
| import java.util.Iterator; |
| |
| import javax.jcr.PropertyType; |
| |
| import org.apache.jackrabbit.oak.api.Blob; |
| import org.apache.jackrabbit.oak.api.PropertyState; |
| import org.apache.jackrabbit.oak.api.PropertyValue; |
| import org.apache.jackrabbit.oak.api.Type; |
| import org.apache.jackrabbit.util.ISO8601; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * A {@link PropertyValue} implementation that wraps a {@link PropertyState} |
| */ |
| public class PropertyStateValue implements PropertyValue { |
| |
| private final PropertyState ps; |
| |
| PropertyStateValue(PropertyState ps) { |
| this.ps = ps; |
| } |
| |
| @Override |
| public boolean isArray() { |
| return ps.isArray(); |
| } |
| |
| @Override |
| @NotNull |
| public Type<?> getType() { |
| return ps.getType(); |
| } |
| |
| @Override |
| @NotNull |
| public <T> T getValue(Type<T> type) { |
| return ps.getValue(type); |
| } |
| |
| @Override |
| @NotNull |
| public <T> T getValue(Type<T> type, int index) { |
| return ps.getValue(type, index); |
| } |
| |
| @Override |
| public long size() { |
| return ps.size(); |
| } |
| |
| @Override |
| public long size(int index) { |
| return ps.size(index); |
| } |
| |
| @Override |
| public int count() { |
| return ps.count(); |
| } |
| |
| @Nullable |
| public PropertyState unwrap() { |
| return ps; |
| } |
| |
| @Override |
| public int compareTo(@NotNull PropertyValue p2) { |
| if (getType().tag() != p2.getType().tag()) { |
| return Integer.signum(p2.getType().tag() - getType().tag()); |
| } |
| switch (getType().tag()) { |
| case PropertyType.BOOLEAN: |
| return compare(getValue(Type.BOOLEANS), p2.getValue(Type.BOOLEANS)); |
| case PropertyType.DECIMAL: |
| return compare(getValue(Type.DECIMALS), p2.getValue(Type.DECIMALS)); |
| case PropertyType.DOUBLE: |
| return compare(getValue(Type.DOUBLES), p2.getValue(Type.DOUBLES)); |
| case PropertyType.LONG: |
| return compare(getValue(Type.LONGS), p2.getValue(Type.LONGS)); |
| case PropertyType.BINARY: |
| return compareBinaries( |
| getValue(Type.BINARIES), p2.getValue(Type.BINARIES)); |
| case PropertyType.DATE: |
| return compareAsDate( |
| getValue(Type.STRINGS), p2.getValue(Type.STRINGS)); |
| default: |
| return compare(getValue(Type.STRINGS), p2.getValue(Type.STRINGS)); |
| } |
| } |
| |
| private static <T extends Comparable<T>> int compare(Iterable<T> p1, |
| Iterable<T> p2) { |
| Iterator<T> i1 = p1.iterator(); |
| Iterator<T> i2 = p2.iterator(); |
| while (i1.hasNext() || i2.hasNext()) { |
| if (!i1.hasNext()) { |
| return 1; |
| } |
| if (!i2.hasNext()) { |
| return -1; |
| } |
| int compare = i1.next().compareTo(i2.next()); |
| if (compare != 0) { |
| return compare; |
| } |
| } |
| return 0; |
| } |
| |
| private static int compareBinaries(Iterable<Blob> p1, Iterable<Blob> p2) { |
| Iterator<Blob> i1 = p1.iterator(); |
| Iterator<Blob> i2 = p2.iterator(); |
| while (i1.hasNext() || i2.hasNext()) { |
| if (!i1.hasNext()) { |
| return 1; |
| } |
| if (!i2.hasNext()) { |
| return -1; |
| } |
| try { |
| InputStream v1 = i1.next().getNewStream(); |
| try { |
| InputStream v2 = i2.next().getNewStream(); |
| try { |
| while (true) { |
| int b1 = v1.read(); |
| int b2 = v2.read(); |
| int compare = b1 - b2; |
| if (compare != 0) { |
| return compare; |
| } else if (b1 == -1) { |
| break; |
| } |
| } |
| } finally { |
| v2.close(); |
| } |
| } finally { |
| v1.close(); |
| } |
| } catch (IOException e) { |
| throw new RuntimeException("Failed to compare stream values", e); |
| } |
| } |
| return 0; |
| } |
| |
| private static int compareAsDate(Iterable<String> p1, Iterable<String> p2) { |
| final char plus = '+'; |
| final char minus = '-'; |
| Iterator<String> i1 = p1.iterator(); |
| Iterator<String> i2 = p2.iterator(); |
| while (i1.hasNext() || i2.hasNext()) { |
| if (!i1.hasNext()) { |
| return 1; |
| } |
| if (!i2.hasNext()) { |
| return -1; |
| } |
| String v1 = i1.next(); |
| String v2 = i2.next(); |
| |
| char v1sign = v1.charAt(0); |
| char v2sign = v2.charAt(0); |
| boolean processStringLiterals = false; |
| |
| if (v1sign != plus && v1sign != minus && v2sign != plus && v2sign != minus) { |
| // if both the dates don't start with a sign |
| String tz1 = v1.substring(23); |
| String tz2 = v2.substring(23); |
| if (tz1.equals(tz2)) { |
| // if we're on the same time zone we should be able to process safely a String |
| // literal of ISO8601 dates (2014-12-12T16:29:10.012Z) |
| processStringLiterals = true; |
| } |
| } |
| |
| if (processStringLiterals) { |
| return v1.compareTo(v2); |
| } else { |
| Calendar c1 = ISO8601.parse(v1); |
| Calendar c2 = ISO8601.parse(v2); |
| int compare = -1; |
| if (c1 != null && c2 != null) { |
| compare = c1.compareTo(c2); |
| } else { |
| compare = v1.compareTo(v2); |
| } |
| if (compare != 0) { |
| return compare; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| // --------------------------------------------------------------< Object > |
| |
| private String getInternalString() { |
| StringBuilder sb = new StringBuilder(); |
| Iterator<String> iterator = getValue(Type.STRINGS).iterator(); |
| while (iterator.hasNext()) { |
| sb.append(iterator.next()); |
| if (iterator.hasNext()) { |
| sb.append(","); |
| } |
| } |
| return sb.toString(); |
| } |
| |
| @Override |
| public int hashCode() { |
| return getType().tag() ^ getInternalString().hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (o == this) { |
| return true; |
| } else if (o instanceof PropertyStateValue) { |
| return compareTo((PropertyStateValue) o) == 0; |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return getInternalString(); |
| } |
| |
| } |