Mercurial > dive4elements > river
view flys-backend/src/main/java/de/intevation/flys/model/SedimentDensityValue.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 | db6c7268b08e |
children |
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package de.intevation.flys.model; import java.io.Serializable; import java.math.BigDecimal; import javax.persistence.Entity; import javax.persistence.Id; import javax.persistence.Table; import javax.persistence.GeneratedValue; import javax.persistence.Column; import javax.persistence.SequenceGenerator; import javax.persistence.GenerationType; import javax.persistence.JoinColumn; import javax.persistence.OneToOne; @Entity @Table(name = "sediment_density_values") public class SedimentDensityValue implements Serializable { private Integer id; private SedimentDensity sedimentDensity; private BigDecimal station; private BigDecimal shoreOffset; private BigDecimal density; private BigDecimal year; private String description; public SedimentDensityValue() { } public SedimentDensityValue( SedimentDensity sedimentDensity, BigDecimal station, BigDecimal shoreOffset, BigDecimal density, BigDecimal year, String desc ) { this.sedimentDensity = sedimentDensity; this.station = station; this.shoreOffset = shoreOffset; this.density = density; this.year = year; this.description = desc; } @Id @SequenceGenerator( name = "SEQUENCE_SEDIMENT_DENSITY_VALUES_ID_SEQ", sequenceName = "SEDIMENT_DENSITY_VALUES_ID_SEQ", allocationSize = 1) @GeneratedValue( strategy = GenerationType.SEQUENCE, generator = "SEQUENCE_SEDIMENT_DENSITY_VALUES_ID_SEQ") @Column(name = "id") public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } @OneToOne @JoinColumn(name = "sediment_density_id") public SedimentDensity getSedimentDensity() { return sedimentDensity; } public void setSedimentDensity(SedimentDensity sedimentDensity) { this.sedimentDensity = sedimentDensity; } @Column(name = "station") public BigDecimal getStation() { return station; } public void setStation(BigDecimal station) { this.station = station; } @Column(name = "shore_offset") public BigDecimal getShoreOffset() { return shoreOffset; } public void setShoreOffset(BigDecimal shoreOffset) { this.shoreOffset = shoreOffset; } @Column(name = "density") public BigDecimal getDensity() { return density; } public void setDensity(BigDecimal density) { this.density = density; } @Column(name = "description") public String getDescription() { return description; } public void setDescription(String description) { this.description = description; } @Column(name = "year") public BigDecimal getYear() { return year; } public void setYear(BigDecimal year) { this.year = year; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :