brooklyn-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Graeme-Miller <...@git.apache.org>
Subject [GitHub] brooklyn-server pull request #192: Adds OnSubnetNetworkEnricher
Date Fri, 10 Jun 2016 10:17:52 GMT
Github user Graeme-Miller commented on a diff in the pull request:

    https://github.com/apache/brooklyn-server/pull/192#discussion_r66591368
  
    --- Diff: core/src/main/java/org/apache/brooklyn/core/network/AbstractOnNetworkEnricher.java
---
    @@ -0,0 +1,407 @@
    +/*
    + * 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.brooklyn.core.network;
    +
    +import java.net.URI;
    +import java.net.URISyntaxException;
    +import java.net.URL;
    +import java.util.Collection;
    +
    +import org.apache.brooklyn.api.entity.Entity;
    +import org.apache.brooklyn.api.entity.EntityLocal;
    +import org.apache.brooklyn.api.location.Location;
    +import org.apache.brooklyn.api.location.MachineLocation;
    +import org.apache.brooklyn.api.sensor.AttributeSensor;
    +import org.apache.brooklyn.api.sensor.Sensor;
    +import org.apache.brooklyn.api.sensor.SensorEvent;
    +import org.apache.brooklyn.api.sensor.SensorEventListener;
    +import org.apache.brooklyn.config.ConfigKey;
    +import org.apache.brooklyn.core.config.ConfigKeys;
    +import org.apache.brooklyn.core.enricher.AbstractEnricher;
    +import org.apache.brooklyn.core.entity.AbstractEntity;
    +import org.apache.brooklyn.core.location.Machines;
    +import org.apache.brooklyn.core.location.access.PortForwardManager;
    +import org.apache.brooklyn.core.sensor.Sensors;
    +import org.apache.brooklyn.util.core.flags.TypeCoercions;
    +import org.apache.brooklyn.util.exceptions.Exceptions;
    +import org.apache.brooklyn.util.guava.Maybe;
    +import org.apache.brooklyn.util.net.Networking;
    +import org.apache.brooklyn.util.text.StringPredicates;
    +import org.apache.brooklyn.util.text.Strings;
    +import org.slf4j.Logger;
    +import org.slf4j.LoggerFactory;
    +
    +import com.google.common.annotations.Beta;
    +import com.google.common.base.Function;
    +import com.google.common.base.Optional;
    +import com.google.common.base.Predicate;
    +import com.google.common.collect.Lists;
    +import com.google.common.net.HostAndPort;
    +import com.google.common.reflect.TypeToken;
    +
    +@Beta
    +public abstract class AbstractOnNetworkEnricher extends AbstractEnricher {
    +
    +    private static final Logger LOG = LoggerFactory.getLogger(AbstractOnNetworkEnricher.class);
    +
    +    @SuppressWarnings("serial")
    +    public static final ConfigKey<AttributeSensor<?>> SENSOR = ConfigKeys.newConfigKey(
    +            new TypeToken<AttributeSensor<?>>() {}, 
    +            "sensor",
    +            "The sensor whose mapped value is to be re-published (with suffix \"mapped.networkName\");
"
    +                    + "either 'sensor' or 'sensors' should be specified");
    +
    +    @SuppressWarnings("serial")
    +    public static ConfigKey<Collection<? extends AttributeSensor<?>>>
SENSORS = ConfigKeys.newConfigKey(
    +            new TypeToken<Collection<? extends AttributeSensor<?>>>()
{}, 
    +            "sensors",
    +            "The multiple sensors whose mapped values are to be re-published (with suffix
\"mapped.networkName\"); "
    +                    + "if neither 'sensor' or 'sensors' is specified, defaults to 'mapAll'");
    +
    +    public static ConfigKey<String> MAP_MATCHING = ConfigKeys.newStringConfigKey(
    +            "mapMatching",
    +            "Whether to map all, based on a sensor naming convention (re-published with
suffix \"mapped.networkName\"); "
    +                    + "if neither 'sensor' or 'sensors' is specified, defaults to matchin
case-insensitive suffix of "
    +                    + "'port', 'uri', 'url' or 'endpoint' ",
    +            "(?i).*(port|uri|url|endpoint)");
    +
    +    @SuppressWarnings("serial")
    +    public static ConfigKey<Function<? super String, String>> SENSOR_NAME_CONVERTER
= ConfigKeys.newConfigKey(
    +            new TypeToken<Function<? super String, String>>() {},
    +            "sensorNameConverter",
    +            "The converter to use, to map from the original sensor name to the re-published
sensor name");
    +
    +    public static class SensorNameConverter implements Function<String, String>
{
    +        private final String network;
    +        
    +        public SensorNameConverter(String network) {
    +            this.network = network;
    +        }
    +        
    +        @Override
    +        public String apply(String input) {
    +            if (input == null) throw new NullPointerException("Sensor name must not be
null");
    +            String lowerInput = input.toLowerCase();
    +            if (lowerInput.endsWith("uri")) {
    +                return input + ".mapped." + network;
    +            } else if (lowerInput.endsWith("url")) {
    +                return input + ".mapped." + network;
    +            } else if (lowerInput.endsWith("endpoint")) {
    +                return input + ".mapped." + network;
    +            } else if (lowerInput.endsWith("port")) {
    +                String prefix = input.substring(0, input.length() - "port".length());
    +                if (prefix.endsWith(".")) prefix = prefix.substring(0, prefix.length()
- 1);
    +                return prefix + ".endpoint.mapped." + network;
    +            } else {
    +                return input + ".mapped." + network;
    +            }
    +        }
    +    }
    +
    +    protected Collection<AttributeSensor<?>> sensors;
    +    protected Optional<Predicate<Sensor<?>>> mapMatching;
    +    protected Function<? super String, String> sensorNameConverter;
    +    protected PortForwardManager.AssociationListener pfmListener;
    +    
    +    protected abstract Optional<HostAndPort> getMappedEndpoint(Entity source, MachineLocation
machine, int port);
    +    
    +    @Override
    +    public void setEntity(final EntityLocal entity) {
    +        super.setEntity(entity);
    +        
    +        checkConfig();
    +        sensors = resolveSensorsConfig();
    +        if (sensors.isEmpty()) {
    +            mapMatching = Optional.of(resolveMapMatchingConfig());
    +        } else {
    +            mapMatching = Optional.absent();
    +        }
    +        sensorNameConverter = getRequiredConfig(SENSOR_NAME_CONVERTER);
    +        
    +        subscriptions().subscribe(entity, AbstractEntity.LOCATION_ADDED, new SensorEventListener<Location>()
{
    +            @Override public void onEvent(SensorEvent<Location> event) {
    +                LOG.debug("{} attempting transformations, triggered by location-added
{}, to {}", new Object[] {AbstractOnNetworkEnricher.this, event.getValue(), entity});
    +                tryTransformAll();
    +            }});
    +
    +        for (AttributeSensor<?> sensor : sensors) {
    +            subscriptions().subscribe(entity, sensor, new SensorEventListener<Object>()
{
    +                @Override public void onEvent(SensorEvent<Object> event) {
    +                    LOG.debug("{} attempting transformations, triggered by sensor-event
{}->{}, to {}", 
    +                            new Object[] {AbstractOnNetworkEnricher.this, event.getSensor().getName(),
event.getValue(), entity});
    +                    tryTransform((AttributeSensor<?>)event.getSensor());
    +                }});
    +        }
    +        if (mapMatching.isPresent()) {
    +            Sensor<?> wildcardSensor = null;
    +            subscriptions().subscribe(entity, wildcardSensor, new SensorEventListener<Object>()
{
    +                @Override public void onEvent(SensorEvent<Object> event) {
    +                    if (mapMatching.get().apply(event.getSensor())) {
    +                        LOG.debug("{} attempting transformations, triggered by sensor-event
{}->{}, to {}", 
    +                                new Object[] {AbstractOnNetworkEnricher.this, event.getSensor().getName(),
event.getValue(), entity});
    +                        tryTransform((AttributeSensor<?>)event.getSensor());
    +                    }
    +                }});
    +        }
    +
    +        tryTransformAll();
    +    }
    +
    +    protected void tryTransformAll() {
    +        if (!isRunning()) {
    +            return;
    +        }
    +        Maybe<MachineLocation> machine = getMachine();
    +        if (machine.isAbsent()) {
    +            return;
    +        }
    +        for (AttributeSensor<?> sensor : sensors) {
    +            try {
    +                tryTransform(machine.get(), sensor);
    +            } catch (Exception e) {
    +                // TODO Avoid repeated logging
    +                Exceptions.propagateIfFatal(e);
    +                LOG.warn("Problem transforming sensor "+sensor+" of "+entity, e);
    +            }
    +        }
    +        if (mapMatching.isPresent()) {
    +            for (Sensor<?> sensor : entity.getEntityType().getSensors()) {
    +                if (sensor instanceof AttributeSensor && mapMatching.get().apply(sensor))
{
    +                    try {
    +                        tryTransform(machine.get(), (AttributeSensor<?>)sensor);
    +                    } catch (Exception e) {
    +                        // TODO Avoid repeated logging
    +                        Exceptions.propagateIfFatal(e);
    +                        LOG.warn("Problem transforming sensor "+sensor+" of "+entity,
e);
    +                    }
    +                }
    +            }
    +        }
    +    }
    +
    +    protected void tryTransform(AttributeSensor<?> sensor) {
    +        if (!isRunning()) {
    +            return;
    +        }
    +        Maybe<MachineLocation> machine = getMachine();
    +        if (machine.isAbsent()) {
    +            return;
    +        }
    +        tryTransform(machine.get(), sensor);
    +    }
    +    
    +    protected void tryTransform(MachineLocation machine, AttributeSensor<?> sensor)
{
    +        Object sensorVal = entity.sensors().get(sensor);
    +        if (sensorVal == null) {
    +            return;
    +        }
    +        Maybe<String> newVal = transformVal(machine, sensor, sensorVal);
    +        if (newVal.isAbsent()) {
    +            return;
    +        }
    +        AttributeSensor<String> mappedSensor = Sensors.newStringSensor(sensorNameConverter.apply(sensor.getName()));
    +        if (newVal.get().equals(entity.sensors().get(mappedSensor))) {
    +            // ignore duplicate
    +            return;
    +        }
    +        LOG.debug("{} publishing value {} (original sensor value {}) for mapped sensor
{}, of entity {}", 
    +                new Object[] {this, newVal.get(), sensorVal, mappedSensor, entity});
    +        entity.sensors().set(mappedSensor, newVal.get());
    +    }
    +    
    +    protected Maybe<String> transformVal(MachineLocation machine, AttributeSensor<?>
sensor, Object sensorVal) {
    +        if (sensorVal == null) {
    +            return Maybe.absent();
    +        } else if (isPort(sensorVal)) {
    +            int port = toInteger(sensorVal);
    +            return transformPort(entity, machine, port);
    +        } else if (isUri(sensorVal)) {
    +            return transformUri(entity, machine, sensorVal.toString());
    +        } else if (isHostAndPort(sensorVal)) {
    +            return transformHostAndPort(entity, machine, sensorVal.toString());
    +        } else {
    +            // no-op; unrecognised type
    +            return Maybe.absent();
    +        }
    +    }
    +
    +    protected boolean isUri(Object sensorVal) {
    +        if (sensorVal instanceof URI || sensorVal instanceof URL) {
    +            return true;
    +        }
    +        try {
    +            URI uri = new URI(sensorVal.toString());
    +            return uri.getScheme() != null;
    +        } catch (URISyntaxException e) {
    +            return false;
    +        }
    +    }
    +
    +    protected boolean isPort(Object sensorVal) {
    +        if (sensorVal instanceof Integer || sensorVal instanceof Long) {
    +            return Networking.isPortValid(((Number)sensorVal).intValue());
    +        } else if (sensorVal instanceof CharSequence) {
    +            return sensorVal.toString().trim().matches("[0-9]+");
    +        } else {
    +            return false;
    +        }
    +    }
    +
    +    protected int toInteger(Object sensorVal) {
    +        if (sensorVal instanceof Number) {
    +            return ((Number)sensorVal).intValue();
    +        } else if (sensorVal instanceof CharSequence) {
    +            return Integer.parseInt(sensorVal.toString().trim());
    +        } else {
    +            throw new IllegalArgumentException("Expected number but got "+sensorVal+"
of type "+(sensorVal != null ? sensorVal.getClass() : null));
    +        }
    +    }
    +
    +    protected boolean isHostAndPort(Object sensorVal) {
    +        if (sensorVal instanceof HostAndPort) {
    +            return true;
    +        } else if (sensorVal instanceof String) {
    +            try {
    +                HostAndPort hostAndPort = HostAndPort.fromString((String)sensorVal);
    +                return hostAndPort.hasPort();
    +            } catch (IllegalArgumentException e) {
    +                return false;
    +            }
    +        }
    +        return false;
    +    }
    +
    +    protected Maybe<String> transformUri(Entity source, MachineLocation machine,
String sensorVal) {
    +        URI uri = URI.create(sensorVal);
    +        int port = uri.getPort();
    +        if (port == -1 && "http".equalsIgnoreCase(uri.getScheme())) port = 80;
    +        if (port == -1 && "https".equalsIgnoreCase(uri.getScheme())) port = 443;
    +
    +        if (port != -1) {
    +            Optional<HostAndPort> mappedEndpoint = getMappedEndpoint(source, machine,
port);
    +            if (!mappedEndpoint.isPresent()) {
    +                LOG.trace("network-facing enricher not transforming {} URI {}, because
no port-mapping for {}", new Object[] {source, sensorVal, machine});
    +                return Maybe.absent();
    +            }
    +            if (!mappedEndpoint.get().hasPort()) {
    +                LOG.debug("network-facing enricher not transforming {} URI {}, because
no port in target {} for {}", new Object[] {source, sensorVal, mappedEndpoint, machine});
    +                return Maybe.absent();
    +            }
    +            URI result;
    +            try {
    +                result = new URI(uri.getScheme(), uri.getUserInfo(), mappedEndpoint.get().getHostText(),
mappedEndpoint.get().getPort(), uri.getPath(), uri.getQuery(), uri.getFragment());
    +            } catch (URISyntaxException e) {
    +                LOG.debug("Error transforming URI "+uri+", using target "+mappedEndpoint+";
rethrowing");
    +                throw Exceptions.propagateAnnotated("Error transforming URI "+uri+",
using target "+mappedEndpoint, e);
    +            }
    +            return Maybe.of(result.toString());
    +        } else {
    +            LOG.debug("sensor mapper not transforming URI "+uri+" because no port defined");
    +            return Maybe.absent();
    +        }
    +    }
    +
    +    protected Maybe<String> transformHostAndPort(Entity source, MachineLocation
machine, String sensorVal) {
    +        HostAndPort hostAndPort = HostAndPort.fromString(sensorVal);
    +        if (hostAndPort.hasPort()) {
    +            int port = hostAndPort.getPort();
    +            Optional<HostAndPort> mappedEndpoint = getMappedEndpoint(source, machine,
port);
    +            if (!mappedEndpoint.isPresent()) {
    +                LOG.debug("network-facing enricher not transforming {} host-and-port
{}, because no port-mapping for {}", new Object[] {source, sensorVal, machine});
    +                return Maybe.absent();
    +            }
    +            if (!mappedEndpoint.get().hasPort()) {
    +                LOG.debug("network-facing enricher not transforming {} host-and-port
{}, because no port in target {} for {}", new Object[] {source, sensorVal, mappedEndpoint,
machine});
    +                return Maybe.absent();
    +            }
    +            return Maybe.of(mappedEndpoint.get().toString());
    +        } else {
    +            LOG.debug("network-facing enricher not transforming {} host-and-port {} because
defines no port", source, hostAndPort);
    +            return Maybe.absent();
    +        }
    +    }
    +
    +    protected Maybe<String> transformPort(Entity source, MachineLocation machine,
int sensorVal) {
    +        if (Networking.isPortValid(sensorVal)) {
    +            Optional<HostAndPort> mappedEndpoint = getMappedEndpoint(source, machine,
sensorVal);
    +            if (!mappedEndpoint.isPresent()) {
    +                LOG.debug("network-facing enricher not transforming {} port {}, because
no port-mapping for {}", new Object[] {source, sensorVal, machine});
    +                return Maybe.absent();
    +            }
    +            if (!mappedEndpoint.get().hasPort()) {
    +                LOG.debug("network-facing enricher not transforming {} port {}, because
no port in target {} for {}", new Object[] {source, sensorVal, mappedEndpoint, machine});
    +                return Maybe.absent();
    +            }
    +            return Maybe.of(mappedEndpoint.get().toString());
    --- End diff --
    
    sensor is a port, but we are returning a HostAndPort here


---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastructure@apache.org or file a JIRA ticket
with INFRA.
---

Mime
View raw message