org.tango.client.database.cache.ServerCache Maven / Gradle / Ivy
package org.tango.client.database.cache;
import fr.esrf.Tango.DevFailed;
import fr.esrf.TangoApi.Connection;
import fr.esrf.TangoApi.DeviceData;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.tango.utils.DevFailedUtils;
import java.util.*;
public final class ServerCache {
private static final String NOT_FOUND = "Not found";
private final Logger logger = LoggerFactory.getLogger(ServerCache.class);
private final Connection database;
private final List adminInfos = new LinkedList();
private String adminDeviceName;
private String adminClassName;
private final Map classCaches = new HashMap();
private class Server {
private final Map devicesPerServer = new HashMap();
public void addClass(final String className, final String[] deviceNames) {
devicesPerServer.put(className, deviceNames);
}
public String[] getDevices(final String className) {
return devicesPerServer.get(className);
}
@Override
public String toString() {
return ToStringBuilder.reflectionToString(this, ToStringStyle.SHORT_PREFIX_STYLE);
}
}
private final Map servers = new HashMap();
private final Map deviceCaches = new HashMap();
public ServerCache(final Connection database) throws DevFailed {
this.database = database;
}
public void fillCache(final String serverName, final String hostName) throws DevFailed {
if (!servers.containsKey(serverName)) {
// set a big timeout because DbGetDataForServerCache can be very big
this.database.set_timeout_millis(13000);
final DeviceData in = new DeviceData();
in.insert(new String[] { serverName, hostName });
logger.debug("filling cache of server {} with host name {}", serverName, hostName);
final String[] out = database.command_inout("DbGetDataForServerCache", in).extractStringArray();
if (out.length == 2) {
DevFailedUtils.throwDevFailed("cache for " + serverName + " not found");
}
int i = 0;
// 1 - Admin device import paramters (2 or 8 elts - 2 when admin
// device not defined in db (second one being
// "Not found"))
// admin device name - 0
adminDeviceName = out[i++];
adminInfos.add(adminDeviceName);
ClassCache adminCache = null;
if (!out[i].equalsIgnoreCase(NOT_FOUND)) {
// IOR - 1
adminInfos.add(out[i++]);
// tango version - 2
adminInfos.add(out[i++]);
// server name - 3
adminInfos.add(out[i++]);
// host name - 4
adminInfos.add(out[i++]);
// ? - 5
adminInfos.add(out[i++]);
// PID - 6
adminInfos.add(out[i++]);
// admin class name - 7
adminClassName = out[i++];
adminInfos.add(adminClassName);
adminCache = new ClassCache(adminClassName);
classCaches.put(adminClassName, adminCache);
}
logger.debug("filling cache, adminInfos = {} ", adminInfos);
// 2 - Event channel factory import event parameters (2 or 6 elts -
// 2 when event channel factory not found
// in DB
// (second = "Not found")) - TODO when event will be supported
// notifd/factory/...
i++;
if (out[i].equalsIgnoreCase(NOT_FOUND)) {
i = i + 1;
} else {
i = i + 5;
}
// 3 - DS event channel import event parameters (2 or 6 elts - 2
// when event channel factory not found in DB
// (second
// = "Not found"))
i++;
if (out[i].equalsIgnoreCase(NOT_FOUND)) {
i = i + 1;
} else {
i = i + 5;
}
// 4 - DServer class properties (at least 2 elts)
if (out[i].equalsIgnoreCase(adminClassName)) {
i++;
final int nbProperties = Integer.parseInt(out[i++]);
for (int j = 0; j < nbProperties; j++) {
final String propertyName = out[i++];
final int propertySize = Integer.parseInt(out[i++]);
final String[] propertyValue = new String[propertySize];
for (int k = 0; k < propertyValue.length; k++) {
propertyValue[k] = out[i++];
}
adminCache.addProperty(propertyName, propertyValue);
}
}
logger.debug("admin class properties cache is {}", adminCache);
// 5 - Default class properties (at least 2 elts)
if (out[i].equalsIgnoreCase("Default")) {
i++;
final int nbProperties = Integer.parseInt(out[i++]);
for (int j = 0; j < nbProperties; j++) {
// final String propertyName = out[i++];
i++;
final int propertySize = Integer.parseInt(out[i++]);
final String[] propertyValue = new String[propertySize];
for (int k = 0; k < propertyValue.length; k++) {
propertyValue[k] = out[i++];
}
// TODO
}
}
// 6 - admin device properties (at least 2 elts)
final DeviceCache adminDeviceCache = new DeviceCache(adminDeviceName);
deviceCaches.put(adminDeviceName, adminDeviceCache);
if (out[i].equalsIgnoreCase(adminDeviceName)) {
i++;
final int nbProperties = Integer.parseInt(out[i++]);
for (int j = 0; j < nbProperties; j++) {
final String propertyName = out[i++];
final int propertySize = Integer.parseInt(out[i++]);
final String[] propertyValue = new String[propertySize];
for (int k = 0; k < propertyValue.length; k++) {
propertyValue[k] = out[i++];
}
adminDeviceCache.addProperty(propertyName, propertyValue);
adminCache.addDeviceCache(adminDeviceCache);
}
}
logger.debug("admin class properties cache is {}", adminDeviceCache);
// /FOR/ Each Tango class in the DS (2 elts to define Class number)
// 7 - class properties (at least 2 elts)
// 8 - class attribute properties (at least 2 elts)
// 9 - device list (at least 2 elts)
// /FOR/ Each device (at least 2 elts)
// 10 - device properties (at least 2 elts)
// 11 - device attribute properties (at least 2 elts)
// /END FOR/
// /END FOR/
if (out[i].equalsIgnoreCase(serverName)) {
final Server s = new Server();
i++;
final int classNr = Integer.parseInt(out[i++]);
final String[] classeNames = new String[classNr];
// iterate on all class of the server
for (int j = 0; j < classNr; j++) {
final String className = out[i++];
final ClassCache classCache = new ClassCache(className);
classeNames[j] = className;
// 7 - class properties (at least 2 elts)
final int classPropertiesNr = Integer.parseInt(out[i++]);
for (int k = 0; k < classPropertiesNr; k++) {
final String propertyName = out[i++];
final int propertySize = Integer.parseInt(out[i++]);
final String[] propertyValue = new String[propertySize];
for (int l = 0; l < propertyValue.length; l++) {
propertyValue[l] = out[i++];
}
classCache.addProperty(propertyName, propertyValue);
}
logger.debug("{} class cache is {}", className, classCache);
// 8 - class attribute properties (at least 2 elts)
i++;
final int classAttrPropertiesNr = Integer.parseInt(out[i++]);
for (int k = 0; k < classAttrPropertiesNr; k++) {
// final String propertyName = out[i++];
i++;
final int propertySize = Integer.parseInt(out[i++]);
final String[] propertyValue = new String[propertySize];
for (int l = 0; l < propertyValue.length; l++) {
propertyValue[l] = out[i++];
}
// TODO
}
// 9 - device list (at least 2 elts)
i++;
final int deviceNr = Integer.parseInt(out[i++]);
i = i + deviceNr;
final String[] deviceNames = new String[deviceNr];
for (int k = 0; k < deviceNr; k++) {
final String deviceName = out[i++];
final DeviceCache deviceCache = new DeviceCache(deviceName);
deviceCaches.put(deviceName, deviceCache);
deviceNames[k] = deviceName;
// 10 - device properties (at least 2 elts)
final int devicePropertiesNr = Integer.parseInt(out[i++]);
for (int l = 0; l < devicePropertiesNr; l++) {
final String propertyName = out[i++];
final int propertySize = Integer.parseInt(out[i++]);
final String[] propertyValue = new String[propertySize];
for (int m = 0; m < propertyValue.length; m++) {
propertyValue[m] = out[i++];
}
deviceCache.addProperty(propertyName, propertyValue);
}
logger.debug("{} device cache is {}", deviceName, deviceCache);
classCache.addDeviceCache(deviceCache);
// 11 - device attribute properties (at least 2
// elts)
i++;
final int attrPropertiesNr = Integer.parseInt(out[i++]);
for (int l = 0; l < attrPropertiesNr; l++) {
final String attributeName = out[i++];
final AttributeCache attributeCache = new AttributeCache(attributeName);
final int propertyNr = Integer.parseInt(out[i++]);
for (int m = 0; m < propertyNr; m++) {
final String propertyName = out[i++];
final int propertySize = Integer.parseInt(out[i++]);
final String[] propertyValue = new String[propertySize];
for (int n = 0; n < propertyValue.length; n++) {
propertyValue[n] = out[i++];
}
attributeCache.addProperty(propertyName, propertyValue);
}
logger.debug("{} attribute cache is {}", attributeName, attributeCache);
deviceCache.addAttributeCache(attributeCache);
}
}
classCaches.put(className, classCache);
s.addClass(className, deviceNames);
}
servers.put(serverName, s);
logger.debug("servers {}", servers);
}
// TODO 12 - CtrlSystem free object properties (at least 2 elts)
// TODO 13 - TAC device import parameters (2 or 8 elts - 2 when
// admin device not defined in db (second one
// being "Not found"))
// reset default timeout
// TODO pipes
this.database.set_timeout_millis(3000);
}
}
public DeviceCache getDeviceCache(final String name) {
return deviceCaches.get(name);
}
public ClassCache getClassCache(final String name) {
return classCaches.get(name);
}
/**
* Get devices of a server
*
* @return
*/
public String[] getDeviceList(final String serverName, final String className) {
String[] result = new String[0];
final Server server = servers.get(serverName);
if (server != null) {
final String[] devices = server.getDevices(className);
if (devices != null) {
result = Arrays.copyOf(devices, devices.length);
}
}
return result;
}
}
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