/*
 * Copyright (c) Citrix Systems, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   1) Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2) Redistributions in binary form must reproduce the above
 *      copyright notice, this list of conditions and the following
 *      disclaimer in the documentation and/or other materials
 *      provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.xensource.xenapi;

import com.xensource.xenapi.Types.BadServerResponse;
import com.xensource.xenapi.Types.VersionException;
import com.xensource.xenapi.Types.XenAPIException;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Date;
import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;

import org.apache.xmlrpc.XmlRpcException;

/**
 * Represents a patch stored on a server
 *
 * @author Citrix Systems, Inc.
 */
public class HostPatch extends XenAPIObject {

    /**
     * The XenAPI reference (OpaqueRef) to this object.
     */
    protected final String ref;

    /**
     * For internal use only.
     */
    HostPatch(String ref) {
        this.ref = ref;
    }

    /**
     * @return The XenAPI reference (OpaqueRef) to this object.
     */
    public String toWireString() {
        return this.ref;
    }

    /**
     * If obj is a HostPatch, compares XenAPI references for equality.
     */
    @Override
    public boolean equals(Object obj)
    {
        if (obj != null && obj instanceof HostPatch)
        {
            HostPatch other = (HostPatch)obj;
            return other.ref.equals(this.ref);
        } else
        {
            return false;
        }
    }

    @Override
    public int hashCode()
    {
        return ref.hashCode();
    }

    /**
     * Represents all the fields in a HostPatch
     */
    public static class Record implements Types.Record {
        public String toString() {
            StringWriter writer = new StringWriter();
            PrintWriter print = new PrintWriter(writer);
            print.printf("%1$20s: %2$s\n", "uuid", this.uuid);
            print.printf("%1$20s: %2$s\n", "nameLabel", this.nameLabel);
            print.printf("%1$20s: %2$s\n", "nameDescription", this.nameDescription);
            print.printf("%1$20s: %2$s\n", "version", this.version);
            print.printf("%1$20s: %2$s\n", "host", this.host);
            print.printf("%1$20s: %2$s\n", "applied", this.applied);
            print.printf("%1$20s: %2$s\n", "timestampApplied", this.timestampApplied);
            print.printf("%1$20s: %2$s\n", "size", this.size);
            print.printf("%1$20s: %2$s\n", "poolPatch", this.poolPatch);
            print.printf("%1$20s: %2$s\n", "otherConfig", this.otherConfig);
            return writer.toString();
        }

        /**
         * Convert a host_patch.Record to a Map
         */
        public Map<String, Object> toMap() {
            Map<String, Object> map = new HashMap<String, Object>();
            map.put("uuid", this.uuid == null ? "" : this.uuid);
            map.put("name_label", this.nameLabel == null ? "" : this.nameLabel);
            map.put("name_description", this.nameDescription == null ? "" : this.nameDescription);
            map.put("version", this.version == null ? "" : this.version);
            map.put("host", this.host == null ? new Host("OpaqueRef:NULL") : this.host);
            map.put("applied", this.applied == null ? false : this.applied);
            map.put("timestamp_applied", this.timestampApplied == null ? new Date(0) : this.timestampApplied);
            map.put("size", this.size == null ? 0 : this.size);
            map.put("pool_patch", this.poolPatch == null ? new PoolPatch("OpaqueRef:NULL") : this.poolPatch);
            map.put("other_config", this.otherConfig == null ? new HashMap<String, String>() : this.otherConfig);
            return map;
        }

        /**
         * Unique identifier/object reference
         */
        public String uuid;
        /**
         * a human-readable name
         */
        public String nameLabel;
        /**
         * a notes field containing human-readable description
         */
        public String nameDescription;
        /**
         * Patch version number
         */
        public String version;
        /**
         * Host the patch relates to
         */
        public Host host;
        /**
         * True if the patch has been applied
         */
        public Boolean applied;
        /**
         * Time the patch was applied
         */
        public Date timestampApplied;
        /**
         * Size of the patch
         */
        public Long size;
        /**
         * The patch applied
         */
        public PoolPatch poolPatch;
        /**
         * additional configuration
         */
        public Map<String, String> otherConfig;
    }

    /**
     * Get a record containing the current state of the given host_patch.
     *
     * @return all fields from the object
     */
    public HostPatch.Record getRecord(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.get_record";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toHostPatchRecord(result);
    }

    /**
     * Get a reference to the host_patch instance with the specified UUID.
     *
     * @param uuid UUID of object to return
     * @return reference to the object
     */
    public static HostPatch getByUuid(Connection c, String uuid) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.get_by_uuid";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(uuid)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toHostPatch(result);
    }

    /**
     * Get all the host_patch instances with the given label.
     *
     * @param label label of object to return
     * @return references to objects with matching names
     */
    public static Set<HostPatch> getByNameLabel(Connection c, String label) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.get_by_name_label";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(label)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toSetOfHostPatch(result);
    }

    /**
     * Get the uuid field of the given host_patch.
     *
     * @return value of the field
     */
    public String getUuid(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.get_uuid";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toString(result);
    }

    /**
     * Get the name/label field of the given host_patch.
     *
     * @return value of the field
     */
    public String getNameLabel(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.get_name_label";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toString(result);
    }

    /**
     * Get the name/description field of the given host_patch.
     *
     * @return value of the field
     */
    public String getNameDescription(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.get_name_description";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toString(result);
    }

    /**
     * Get the version field of the given host_patch.
     *
     * @return value of the field
     */
    public String getVersion(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.get_version";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toString(result);
    }

    /**
     * Get the host field of the given host_patch.
     *
     * @return value of the field
     */
    public Host getHost(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.get_host";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toHost(result);
    }

    /**
     * Get the applied field of the given host_patch.
     *
     * @return value of the field
     */
    public Boolean getApplied(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.get_applied";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toBoolean(result);
    }

    /**
     * Get the timestamp_applied field of the given host_patch.
     *
     * @return value of the field
     */
    public Date getTimestampApplied(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.get_timestamp_applied";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toDate(result);
    }

    /**
     * Get the size field of the given host_patch.
     *
     * @return value of the field
     */
    public Long getSize(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.get_size";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toLong(result);
    }

    /**
     * Get the pool_patch field of the given host_patch.
     *
     * @return value of the field
     */
    public PoolPatch getPoolPatch(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.get_pool_patch";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toPoolPatch(result);
    }

    /**
     * Get the other_config field of the given host_patch.
     *
     * @return value of the field
     */
    public Map<String, String> getOtherConfig(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.get_other_config";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toMapOfStringString(result);
    }

    /**
     * Set the other_config field of the given host_patch.
     *
     * @param otherConfig New value to set
     */
    public void setOtherConfig(Connection c, Map<String, String> otherConfig) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.set_other_config";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref), Marshalling.toXMLRPC(otherConfig)};
        Map response = c.dispatch(method_call, method_params);
        return;
    }

    /**
     * Add the given key-value pair to the other_config field of the given host_patch.
     *
     * @param key Key to add
     * @param value Value to add
     */
    public void addToOtherConfig(Connection c, String key, String value) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.add_to_other_config";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref), Marshalling.toXMLRPC(key), Marshalling.toXMLRPC(value)};
        Map response = c.dispatch(method_call, method_params);
        return;
    }

    /**
     * Remove the given key and its corresponding value from the other_config field of the given host_patch.  If the key is not in that Map, then do nothing.
     *
     * @param key Key to remove
     */
    public void removeFromOtherConfig(Connection c, String key) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.remove_from_other_config";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref), Marshalling.toXMLRPC(key)};
        Map response = c.dispatch(method_call, method_params);
        return;
    }

    /**
     * Destroy the specified host patch, removing it from the disk. This does NOT reverse the patch
     * @deprecated
     *
     * @return Task
     */
    @Deprecated
    public Task destroyAsync(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "Async.host_patch.destroy";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toTask(result);
    }

    /**
     * Destroy the specified host patch, removing it from the disk. This does NOT reverse the patch
     * @deprecated
     *
     */
    @Deprecated
    public void destroy(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.destroy";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref)};
        Map response = c.dispatch(method_call, method_params);
        return;
    }

    /**
     * Apply the selected patch and return its output
     * @deprecated
     *
     * @return Task
     */
    @Deprecated
    public Task applyAsync(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "Async.host_patch.apply";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toTask(result);
    }

    /**
     * Apply the selected patch and return its output
     * @deprecated
     *
     * @return the output of the patch application process
     */
    @Deprecated
    public String apply(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.apply";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session), Marshalling.toXMLRPC(this.ref)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toString(result);
    }

    /**
     * Return a list of all the host_patchs known to the system.
     *
     * @return references to all objects
     */
    public static Set<HostPatch> getAll(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.get_all";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toSetOfHostPatch(result);
    }

    /**
     * Return a map of host_patch references to host_patch records for all host_patchs known to the system.
     *
     * @return records of all objects
     */
    public static Map<HostPatch, HostPatch.Record> getAllRecords(Connection c) throws
        BadServerResponse,
        XenAPIException,
        XmlRpcException {
        String method_call = "host_patch.get_all_records";
        String session = c.getSessionReference();
        Object[] method_params = {Marshalling.toXMLRPC(session)};
        Map response = c.dispatch(method_call, method_params);
        Object result = response.get("Value");
        return Types.toMapOfHostPatchHostPatchRecord(result);
    }

}