org.sonar.api.issue.internal.FieldDiffs.java Source code

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Here is the source code for org.sonar.api.issue.internal.FieldDiffs.java

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/*
 * SonarQube, open source software quality management tool.
 * Copyright (C) 2008-2013 SonarSource
 * mailto:contact AT sonarsource DOT com
 *
 * SonarQube is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * SonarQube is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.api.issue.internal;

import com.google.common.base.Splitter;
import com.google.common.base.Strings;
import com.google.common.collect.Maps;

import javax.annotation.CheckForNull;
import javax.annotation.Nullable;
import java.io.Serializable;
import java.util.Date;
import java.util.Map;

/**
 * PLUGINS MUST NOT BE USED THIS CLASS, EXCEPT FOR UNIT TESTING.
 *
 * @since 3.6
 */
public class FieldDiffs implements Serializable {

    public static final Splitter FIELDS_SPLITTER = Splitter.on(',').omitEmptyStrings();

    private String userLogin;
    private Date createdAt, updatedAt;
    private final Map<String, Diff> diffs = Maps.newLinkedHashMap();

    public Map<String, Diff> diffs() {
        return diffs;
    }

    public Diff get(String field) {
        return diffs.get(field);
    }

    @CheckForNull
    public String userLogin() {
        return userLogin;
    }

    public FieldDiffs setUserLogin(@Nullable String s) {
        this.userLogin = s;
        return this;
    }

    public Date createdAt() {
        return createdAt;
    }

    public FieldDiffs setCreatedAt(Date d) {
        this.createdAt = d;
        return this;
    }

    public Date updatedAt() {
        return updatedAt;
    }

    public FieldDiffs setUpdatedAt(Date d) {
        this.updatedAt = d;
        return this;
    }

    @SuppressWarnings("unchecked")
    public FieldDiffs setDiff(String field, @Nullable Serializable oldValue, @Nullable Serializable newValue) {
        Diff diff = diffs.get(field);
        if (diff == null) {
            diff = new Diff(oldValue, newValue);
            diffs.put(field, diff);
        } else {
            diff.setNewValue(newValue);
        }
        return this;
    }

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        boolean notFirst = false;
        for (Map.Entry<String, Diff> entry : diffs.entrySet()) {
            if (notFirst) {
                sb.append(',');
            } else {
                notFirst = true;
            }
            sb.append(entry.getKey());
            sb.append('=');
            sb.append(entry.getValue().toString());
        }
        return sb.toString();
    }

    public static FieldDiffs parse(@Nullable String s) {
        FieldDiffs diffs = new FieldDiffs();
        if (!Strings.isNullOrEmpty(s)) {
            Iterable<String> fields = FIELDS_SPLITTER.split(s);
            for (String field : fields) {
                String[] keyValues = field.split("=");
                if (keyValues.length == 2) {
                    String[] values = keyValues[1].split("\\|");
                    String oldValue = "";
                    String newValue = "";
                    if (values.length > 0) {
                        oldValue = Strings.nullToEmpty(values[0]);
                    }
                    if (values.length > 1) {
                        newValue = Strings.nullToEmpty(values[1]);
                    }
                    diffs.setDiff(keyValues[0], oldValue, newValue);
                }
            }
        }
        return diffs;
    }

    public static class Diff<T extends Serializable> implements Serializable {
        private T oldValue, newValue;

        public Diff(@Nullable T oldValue, @Nullable T newValue) {
            this.oldValue = oldValue;
            this.newValue = newValue;
        }

        public T oldValue() {
            return oldValue;
        }

        public T newValue() {
            return newValue;
        }

        void setNewValue(T t) {
            this.newValue = t;
        }

        @Override
        public String toString() {
            //TODO escape , and | characters
            StringBuilder sb = new StringBuilder();
            if (oldValue != null) {
                sb.append(oldValue.toString());
            }
            sb.append('|');
            if (newValue != null) {
                sb.append(newValue.toString());
            }
            return sb.toString();
        }
    }
}