Mercurial > dive4elements > river
view flys-backend/src/main/java/de/intevation/flys/model/SQRelationValue.java @ 5779:ebec12def170
Datacage: Add a pool of builders to make it multi threadable.
XML DOM is not thread safe. Therefore the old implementation only allowed one thread
to use the builder at a time. As the complexity of the configuration
has increased over time this has become a bottleneck of the whole application
because it took quiet some time to build a result. Furthermore the builder code path
is visited very frequent. So many concurrent requests were piled up
resulting in long waits for the users.
To mitigate this problem a round robin pool of builders is used now.
Each of the pooled builders has an independent copy of the XML template
and can be run in parallel.
The number of builders is determined by the system property
'flys.datacage.pool.size'. It defaults to 4.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Sun, 21 Apr 2013 12:48:09 +0200 |
parents | e667c127b600 |
children |
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package de.intevation.flys.model; import java.io.Serializable; import javax.persistence.Entity; import javax.persistence.Id; import javax.persistence.Table; import javax.persistence.GeneratedValue; import javax.persistence.JoinColumn; import javax.persistence.Column; import javax.persistence.SequenceGenerator; import javax.persistence.OneToOne; import javax.persistence.GenerationType; @Entity @Table(name = "sq_relation_value") public class SQRelationValue implements Serializable { private Integer id; private SQRelation sqRelation; private String parameter; private MeasurementStation measurementStation; private Double a; private Double b; private Double qMax; private Double rSQ; private Integer nTot; private Integer nOutlier; private Double cFerguson; private Double cDuan; protected SQRelationValue() { } public SQRelationValue( SQRelation sqRelation, String parameter, MeasurementStation measurementStation, Double a, Double b, Double qMax, Double rSQ, Integer nTot, Integer nOutlier, Double cFerguson, Double cDuan ) { this.sqRelation = sqRelation; this.parameter = parameter; this.measurementStation = measurementStation; this.a = a; this.b = b; this.qMax = qMax; this.rSQ = rSQ; this.nTot = nTot; this.nOutlier = nOutlier; this.cFerguson = cFerguson; this.cDuan = cDuan; } @Id @SequenceGenerator( name = "SEQUENCE_SQ_VALUE_ID_SEQ", sequenceName = "SQ_RELATION_VALUES_ID_SEQ", allocationSize = 1) @GeneratedValue( strategy = GenerationType.SEQUENCE, generator = "SEQUENCE_SQ_VALUE_ID_SEQ") @Column(name = "id") public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } @OneToOne @JoinColumn(name = "sq_relation_id") public SQRelation getSqRelation() { return sqRelation; } public void setSqRelation(SQRelation sqRelation) { this.sqRelation = sqRelation; } @Column(name = "parameter") public String getParameter() { return parameter; } public void setParameter(String parameter) { this.parameter = parameter; } @OneToOne @JoinColumn(name = "measurement_station_id") public MeasurementStation getMeasurementStation() { return measurementStation; } public void setMeasurementStation(MeasurementStation measurementStation) { this.measurementStation = measurementStation; } @Column(name = "a") public Double getA() { return a; } public void setA(Double a) { this.a = a; } @Column(name = "b") public Double getB() { return b; } public void setB(Double b) { this.b = b; } @Column(name = "qmax") public Double getQMax() { return qMax; } public void setQMax(Double qMax) { this.qMax = qMax; } @Column(name = "rsq") public Double getRSQ() { return rSQ; } public void setRSQ(Double rSQ) { this.rSQ = rSQ; } @Column(name = "ntot") public Integer getNTot () { return nTot; } public void setNTot(Integer nTot) { this.nTot = nTot; } @Column(name = "noutl") public Integer getNOutlier() { return nOutlier; } public void setNOutlier(Integer nOutlier) { this.nOutlier = nOutlier; } @Column(name = "cferguson") public Double getCFerguson() { return cFerguson; } public void setCFerguson(Double cFerguson) { this.cFerguson = cFerguson; } @Column(name = "cduan") public Double getCDuan() { return cDuan; } public void setCDuan(Double cDuan) { this.cDuan = cDuan; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :